Cisco Nexus 7000 Series NX-OS Verified Scalability GuideThis document describes the Cisco NX-OS configuration limits for the Cisco Nexus 7000 Series switches. • New and Changed Information, page 1 • Introduction, page 3 • Configuration Limits for Connecting Cisco Nexus 2000 Series Fabric Extenders to Cisco Nexus 7000 Series Switches, page 4 • Configuration Limits for FabricPath, page 4 • Configuration Limits for FCoE, page 5 • Configuration Limits for Interfaces, page 6 • Configuration Limits for Layer 2 Switching, page 9 • Configuration Limits for LISP, page 10 • Configuration Limits for MPLS, page 10 • Configuration Limits for Multicast Routing, page 13 • Configuration Limits for OTV, page 15 • Configuration Limits for QoS, page 16 • Configuration Limits for Security, page 16 • Configuration Limits for System Management, page 17 • Configuration Limits for Unicast Routing, page 18 • Configuration Limits for VDCs, page 25 New and Changed Information This table summarizes the new and changed verified scalability values for the Cisco Nexus 7000 Series switches. Cisco Nexus 7000 Series NX-OS Verified Scalability Guide OL-25829-03 1 Cisco Nexus 7000 Series NX-OS Verified Scalability Guide New and Changed Information Table 1: New and Changed Verified Scalability Values Date February 24, 2014 Description Changed in Release 6.2(6) • Added values for private VLANs to the table in the "Configuration Limits for Layer 2 Switching" section. • Added values for the number of secondary IP addresses used for OTV traffic depolarization to the table in the "Configuration Limits for OTV" section. • Added values for the number of physical port vPCs on front panel ports used for FCoE to the table in the "Configuration Limits for Interfaces" section. January 8, 2014 Added a new parameter to the table in the "Guidelines and Limitations for EIGRP Configuration Limits" section. 6.2 January 7, 2014 Removed the outdated values for "Number of neighbors + 6.2 passive interfaces + routes" in the "Guidelines and Limitations for EIGRP Configuration Limits" section. • Updated the EIGRP verified scalability numbers in Table 14 (Configuration Limits for Unicast Routing) for Cisco NX-OS Release 6.2(6). • Updated the configuration limits for Cisco NX-OS Release 6.2(6) in the "Guidelines and Limitations for EIGRP Configuration Limits" section. 6.2(6) January 6, 2014 November 2013 • Added the specified I/O modules to introductory paragraphs for vPC+ and vPC guidelines and limitations in Cisco NX-OS 6.2 releases. • Updated and added the information for validated VPC scalability in Cisco NX-OS 6.2 releases. 6.2 August 2013 October 2012 August 2012 November 2011 Updated the verified scalability values. Updated the verified scalability values. Updated the verified scalability values. Initial version ofthe guide with information for shipping releases. 6.2.2 6.1.2 6.1 — Cisco Nexus 7000 Series NX-OS Verified Scalability Guide 2 OL-25829-03 • Cisco NX-OS Release 6.1 introduced support for Cisco Nexus 7000 Supervisor 2 and Supervisor 2e. If a higher scale is verified on Supervisor 2e. For example.2 introduced support for Cisco Nexus 7700 switches. • If the latest release has an updated value for a parameter but the previous release does not. Supervisor 2e running on Cisco Nexus 7700 switches provides the same software scalability as Supervisor 2e running on Cisco Nexus 7000 switches. Results might differ from the values listed here when trying to achieve maximum scalability with multiple features enabled. These limits refer to values that have been validated by Cisco. a listed number of FCoE fabric logins can be in a single VDC or be a sum of fabric logins across all VDCs in the system. please take note of the following: • All numbers are per system unless noted otherwise. Supervisor 2e is designed to provide the highest software scalability. • The values provided in this guide are uni-dimensional. specific information for the previous release is not available. They focus on the scalability of one particular feature at a time. • The values provided in this guide should not be interpreted as theoretical system limits for Cisco Nexus 7000 Series and Cisco Nexus 7700 Series hardware or Cisco NX-OS software. They can increase over time as more testing and validation is done. If Supervisor 2e is not verified to provide a higher scale for a particular feature parameter. Cisco Nexus 7000 Series NX-OS Verified Scalability Guide OL-25829-03 3 .Cisco Nexus 7000 Series NX-OS Verified Scalability Guide Introduction Introduction The scalability of Cisco Nexus 7000 Series switches has been verified for the following features: • Cisco Nexus 2000 Series Fabric Extender connectivity to Cisco Nexus 7000 Series switches • FabricPath • Fibre Channel over Ethernet (FCoE) • Interfaces • Layer 2 switching • Locator/ID Separation Protocol (LISP) • Multiprotocol Label Switching (MPLS) • Multicast routing • Overlay Transport Virtualization (OTV) • QoS • Security • System management • Unicast routing • Virtual device context (VDC) To make the best use of this document. the scale values for each supervisor will be listed using the following notation: Supervisor 1 value / Supervisor 2 value / Supervisor 2e value. • Cisco NX-OS Release 6. Any changes in the number of supported VDCs do not automatically imply changes in the supported scale for other features. a single scalability value will be listed for all supervisors. 1.1) 32 with 1536 Verified Limit (Cisco NX-OS 6.Cisco Nexus 7000 Series NX-OS Verified Scalability Guide Configuration Limits for Connecting Cisco Nexus 2000 Series Fabric Extenders to Cisco Nexus 7000 Series Switches Configuration Limits for Connecting Cisco Nexus 2000 Series Fabric Extenders to Cisco Nexus 7000 Series Switches Table 2: Configuration Limits for Connecting Cisco Nexus 2000 Series Fabric Extenders to Cisco Nexus 7000 Series Switches Parameter Verified Limit (Cisco NX-OS 6.2) 4000 Verified Limit (Cisco NX-OS 6.2) Verified Limit (Cisco NX-OS 6. Cisco recommends connecting FEX uplinks to one switch on chip (SoC) on F2 or F2e Series modules instead of spreading them across different SoCs.1) 4000 (Cisco NX-OS 6.1.0) 2000 Verified Limit (Cisco NX-OS 5.2) Verified Limit (Cisco NX-OS 6.2) 2000 Number of VLANs per switch Cisco Nexus 7000 Series NX-OS Verified Scalability Guide 4 OL-25829-03 .2) 32 Number of Fabric Extenders with total 32 with 1536 number of Fabric Extender server interfaces on Supervisor 1 or 2 Number of Fabric Extenders with total 64 with 3072 number of Fabric Extender server interfaces on Supervisor 2e Number of VLANs per Fabric Extender Number of VLANs per Fabric Extender server interface Number of subinterfaces per Fabric Extender server interface 2000 75 63 48 with 2048 N/A N/A 2000 50 63 2000 50 63 2000 50 63 Note To achieve the highest VLAN per Fabric Extender (FEX) port scale. Configuration Limits for FabricPath Table 3: Configuration Limits for FabricPath Feature Verified Limit (Cisco NX-OS 6.1) 2000 (Cisco NX-OS 6.0) 32 Verified Limit (Cisco NX-OS 5. 000 256 / 256 / 768 256 / 256 / 768 Verified Limit (Cisco NX-OS 6.0) (Cisco NX-OS 5.1.1.2) (Cisco NX-OS 6.000 256 128 Verified Limit (Cisco NX-OS 5.2) 256 256 1 2 10.1) 256 256 1 2 10.1) (Cisco NX-OS 6.Cisco Nexus 7000 Series NX-OS Verified Scalability Guide Configuration Limits for FCoE Feature Verified Limit (Cisco NX-OS 6. Enabling this command will cause a brief disruption to traffic.2) Not tested Not tested Not tested Not tested Not tested Not tested Not tested Not tested Not tested Not tested Not tested Not tested Not tested Not tested Not tested Not tested Not tested Not tested Number of fabric logins per 2500 switch Number of fabric logins per 500 line card Number of fabric logins per 256 port Number of FCoE hops Number of vFC interfaces Number of vFC port channels 7 396 128 Cisco Nexus 7000 Series NX-OS Verified Scalability Guide OL-25829-03 5 .000 256 128 (Cisco NX-OS 6.0) 256 256 1 2 10.000 256 64 Number of core ports per switch Number of edge ports per switch Number of topologies Number of trees per topology Number of multicast groups per switch Number of FabricPath IS-IS adjacencies Number of switch IDs Note To achieve the maximum number of topologies. Cisco recommends enabling the no port-channel limit command. Configuration Limits for FCoE Table 4: Configuration Limits for FCoE Parameter Verified Limit Verified Limit Verified Limit Verified Limit (Cisco NX-OS 6.2) Verified Limit (Cisco NX-OS 6.2) 256 / 256 / 768 384 8 2 10.1) 256 (Cisco NX-OS 6. 0) 5.Cisco Nexus 7000 Series NX-OS Verified Scalability Guide Configuration Limits for Interfaces Parameter Number of zone members per fabric Verified Limit Verified Limit Verified Limit Verified Limit (Cisco NX-OS 6.0) (Cisco NX-OS 5.2) 16.000 Not tested Not tested Not tested Not tested Not tested Not tested Not tested Not tested Not tested Not tested Not tested Not tested Number of zones per fabric 8000 Number of zone sets per switch Number of VSANs per fabric 500 80 Note The numbers above are verified and supported on Cisco Nexus 7000 and Cisco Nexus 7700 switches with Supervisor 2e only.2) 744 744 528 528 528 528 528 528 Port channels Number of port channels per system Virtual port channels (vPCs) Number of vPCs (total) per system Number of vPCs (FEX) per system Number of vPC+s (total) per system 744 3841 528 528 528 244 244 244 Number of physical port vPCs 30 for Cisco on front panel ports used for NX-OS FCoE Release 6.2(6) N/A N/A N/A Cisco Nexus 7000 Series NX-OS Verified Scalability Guide 6 OL-25829-03 .2) (Cisco NX-OS 6.1) 6. Configuration Limits for Interfaces Table 5: Configuration Limits for Interfaces Feature Parameter Verified Limit Verified Limit Verified Limit Verified Limit (Cisco NX-OS (Cisco NX-OS (Cisco NX-OS (Cisco NX-OS 6.2) 6.1) (Cisco NX-OS 6. Feature vPC VDC VLANs per system Profile A1 75 1 500 Profile A2 75 4 500 30 300 Profile B 35 1 4000 4000 4000 Profile C 400 1 4000 300 4000 Profile D 744 1 4000 200 744 VLAN trunked 30 per vPC SVI per system 500 Cisco Nexus 7000 Series NX-OS Verified Scalability Guide OL-25829-03 7 .2) 50 msec x 3 50 msec x 3 50 msec x 3 BFD Minimum interval x multiplier 50 msec x 3 (peers over Layer 3 link or Layer 3 port channel with per-link mode) Minimum interval x multiplier 250 msec x 3 250 msec x 3 250 msec x 3 250 msec x 3 (peers over Layer 2 port channel and Layer 3 port channel without per-link mode) Number of sessions per I/O module with subinterface optimize Number of sessions per I/O module with 300 msec x 3 interval Number of sessions per I/O module with 50 msec x 3 interval 1000 N/A N/A N/A 500 Not tested Not tested Not tested 250 200 200 200 Number of sessions per system 2000 Generic Number of GRE tunnels routing encapsulation (GRE) 1500 1000 1500 1000 1500 1000 1500 1 To achieve more than 244 VPC+s.1) 6.Cisco Nexus 7000 Series NX-OS Verified Scalability Guide Configuration Limits for Interfaces Feature Parameter Verified Limit Verified Limit Verified Limit Verified Limit (Cisco NX-OS (Cisco NX-OS (Cisco NX-OS (Cisco NX-OS 6.0) 5. Enabling this command will cause a brief disruption to traffic. you must enable the no port-channel limit command.2 release with M2 and F2e I/O modules where applicable and should be used as a guide in planning your deployment. The following templates are validated in the Cisco NX-OS 6.2) 6. Guidelines and Limitations for vPC Configuration Limits The vPC configuration limits such as the number of vPC+ and VLANs in a vPC+ domain depend on many different parameters. 000 150. or F2e Series modules. Cisco recommends using the M2.MST used 150. • For the highest per-system scale. Cisco Nexus 7000 Series NX-OS Verified Scalability Guide 8 OL-25829-03 .000 4000 2e Profile C N/A -.500 90.000 744 2e Note For the highest vPC scalability. the number of sessions can be all IPv4. Guidelines and Limitations for vPC+ Configuration Limits The vPC+ configuration limits such as the number of vPC+ and VLANs in a vPC+ domain depend on many different parameters. or a mix of both. • For the highest per-line card scale.000 300 2e Profile B N/A -.Cisco Nexus 7000 Series NX-OS Verified Scalability Guide Configuration Limits for Interfaces Feature RPVST+ logical ports STP virtual ports HSRP groups Supervisor Profile A1 6.000 4000 2e Profile D N/A -. all IPv6.000 500 1 Profile A2 16.MST used 150. For scenarios with 4000 VLANs or SVIs and HSRP. Feature vPC+ VDC VLANs per VDC VLAN / vPC HSRP groups Supervisor Profile A 384 2 2000 75 384 2e Profile B 35 1 4000 4000 4000 2e Guidelines and Limitations for BFD Configuration Limits • Beginning with Cisco NX-OS Release 6. Cisco recommends using Supervisor 2e. F2. The following templates are validated in the Cisco NX-OS 6.2.2 release with F2e I/O modules and should be used as a guide in planning your deployment. Cisco recommends using the M2 Series modules. Cisco recommends deploying MST and Supervisor 2e.MST used 150. Synchronizing the MAC address tables can reduce the number of MAC addresses supported in a VDC to 16.000 16.000 128.000 Private VLAN Number of private VLAN 16 mappings per promiscuous trunk 16 16 16 Note The F2 and F2e modules synchronize the MAC address tables for a VLAN across all Switch on Chips (SoCs) present in a virtual device context (VDC) when a switch virtual interface (SVI) for the VLAN is configured.Cisco Nexus 7000 Series NX-OS Verified Scalability Guide Configuration Limits for Layer 2 Switching Configuration Limits for Layer 2 Switching Table 6: Configuration Limits for Layer 2 Switching Feature Parameter Verified Limit Verified Limit Verified Limit Verified Limit (Cisco NX-OS (Cisco NX-OS (Cisco NX-OS (Cisco NX-OS 6.000.000 I/O modules Spanning Tree Number of Multiple Protocol Spanning Tree (MST) instances per VDC Number of MST virtual ports Number of Rapid per-VLAN Spanning Tree+ (RPVST+) logical ports per switch 64 64 90.000 to 256.000 16.000 to 192.000 90.000 to 256.000 16.000 16.000 16.000 to 256.000 / 90.000 to 192.000 128.000 Layer 2 infrastructure Number of Layer 2 table entries on M Series I/O modules Number of Layer 2 table entries on F1 Series I/O modules 16.000 90.000 90.2) 6.000 N/A Number of Layer 2 table 16.000 64 16.1) 6.000 to 256.000 64 16.0) 5.2) 128.000 16.000 16. Cisco Nexus 7000 Series NX-OS Verified Scalability Guide OL-25829-03 9 .000 / 150.000 to entries on F2 or F2e Series 192.000 128. 000 8 250 4 Verified Limit (Cisco NX-OS 5.000 Configuration Limits for MPLS Table 8: Configuration Limits for MPLS Feature Parameter Verified Limit Verified Limit (Cisco NX-OS 6.2) 10.0) 10.1) 10.2) 4 200 LDP and Maximum label 4 infrastructure depth for forwarding Number of LDP sessions 200 Cisco Nexus 7000 Series NX-OS Verified Scalability Guide 10 OL-25829-03 .1) 4 200 Verified Limit (Cisco NX-OS 6.000 8 250 4 Verified Limit (Cisco NX-OS 6.Cisco Nexus 7000 Series NX-OS Verified Scalability Guide Configuration Limits for LISP Configuration Limits for LISP Table 7: Configuration Limits for Map Server and Ingress Tunnel Routers (ITRs) and Egress Tunnel Routers (ETRs) Feature Parameter Verified Limit (Cisco NX-OS 6.2) 1000 8 250 4 Map server Number of mapping entries registered on a map server Number of RLOCs per EID mapping entry ITR/ETR Number of dynamic EID mapping 250 entries registered to a map server Number of EIDs with static 4 mapping entries registered to a map server (per address family and per VRF) Number of VRFs 300 256 300 N/A N/A Not tested Not tested 300 N/A N/A Not tested Not tested 300 N/A N/A Not tested Not tested Multi-Tenancy Number of instances on a map server Number of instances on xTR and 256 PxTR PxTR xTR Number of EID prefixes on PxTR 1000 map cache Number of EID prefixes on xTR map cache 10.000 8 Verified Limit (Cisco NX-OS 6.2) (Cisco NX-OS 6.0) 4 200 Verified Limit (Cisco NX-OS 5. 000 Verified Limit (Cisco NX-OS 5.Cisco Nexus 7000 Series NX-OS Verified Scalability Guide Configuration Limits for MPLS Feature Parameter Verified Limit Verified Limit (Cisco NX-OS 6.2) 4000 12.2) (Cisco NX-OS 6.0) 4000 12.000 Verified Limit (Cisco NX-OS 6.000 TE mid-point LSPs (transit) Layer 2 VPN (L2VPN) Number of pseudo-wires for VPLS Number of pseudo-wires for EoMPLS Number of VPLS virtual forwarding instances (VFIs) Number of VPLS bridge domains Number of VPLS sites Number of MAC addresses in VPLS across all VLANs 2000 N/A N/A N/A 4000 N/A N/A N/A 1000 N/A N/A N/A 1000 N/A N/A N/A N/A N/A 16 single-homed N/A 8 dual-homed 40.000 Traffic Number of MPLS 5000 engineering TE head-end tunnels Number of MPLS 12.1) 4000 12.000 N/A N/A N/A Cisco Nexus 7000 Series NX-OS Verified Scalability Guide OL-25829-03 11 . 000 250.000 / 300.000 250.000 500.000 1000 256 200 50.000 1000 256 Guidelines and Limitations for MPLS L2VPN Configuration Limits • Each MPLS L2VPN scale value might vary when combined with other parameters.000 / 500.000 500. • For VPLS.000 mode Number of VPN 1000 / 1000 / labels with per-VRF 4000 label allocation mode Number of VPNv6 250.000 300.000 1000 256 200 50. Cisco Nexus 7000 Series NX-OS Verified Scalability Guide 12 OL-25829-03 .000 / per-VRF label 350.000 Verified Limit (Cisco NX-OS 6. the fewer VFIs and bridge domains that can be supported due to the increased number of pseudo-wires to connect sites in a full mesh.000 1000 1000 1000 250.000 / (6VPE) routes with 250.1) 1000 / 1000 / 4000 300.0) 1000 300.000 VRF routes Number of MDT groups per system Number of MDT groups per VRF 1000 1000 200 50.2) 1000 300.000 allocation mode Number of route targets imported in one VRF MVPN 1000 500.000 300.000 Number of VPNv4 500.000 / label allocation 700.000 / 500.2) (Cisco NX-OS 6.000 Not tested Not tested Not tested Number of multicast 200 VRFs per system Number of multicast 50.000 Verified Limit (Cisco NX-OS 5.000 1000 300.000 Layer 3 VPN (L3VPN) Number of VPNs per system Number of VPNv4 routes with per-prefix label allocation mode Number of VPN labels with per-prefix label allocation mode 300.Cisco Nexus 7000 Series NX-OS Verified Scalability Guide Configuration Limits for MPLS Feature Parameter Verified Limit Verified Limit (Cisco NX-OS 6.000 / 300.000 / routes with per-VRF 500.000 300. the more sites that are used. 000 32.000 / 8 32.000 2000 15. • The following scenarios were tested in a single VDC as well as in VRFs broken up across four VDCs.000 Not tested 16.000 2000 15.000 routes with PIM bidirectional Number of IPv4 multicast routes using generic routing encapsulation reverse path forwarding (GRE RPF) interfaces or outgoing interfaces (OIFs) / number of GRE OIFs per route Number of IPv4 multicast routes in a vPC environment Number of IPv6 multicast routes 16.000 / 8 32.000 2000 15.000 Not tested 16.000 / 8 Multicast routing and forwarding Number of IPv4 multicast routes with PIM sparse mode Number of IPv4 multicast 32.000 2000 Cisco Nexus 7000 Series NX-OS Verified Scalability Guide OL-25829-03 13 .2) 6. 85% of the routes were local. See examples of scenarios tested with Supervisor 2e running Cisco NX-OS Release 6.2) Number of L3VPNs with PE-CE (2000 static routes + 2000 BGP sessions) 4000 Number of L3VPNs without PE-CE (direct routes) Number of L3VPNs in InterAS OptB lite 4000 4000 Configuration Limits for Multicast Routing Table 9: Configuration Limits for Multicast Routing Feature Parameter Verified Limit Verified Limit Verified Limit Verified Limit (Cisco NX-OS (Cisco NX-OS (Cisco NX-OS (Cisco NX-OS 6.000 / 8 25. and 15% were remote.2) 32.000 Not tested 16.1) 6.Cisco Nexus 7000 Series NX-OS Verified Scalability Guide Configuration Limits for Multicast Routing Guidelines and Limitations for MPLS L3VPN Configuration Limits • Each MPLS L3VPN scale value might vary when combined with other parameters. Parameter Verified Limit (Cisco NX-OS 6.2 for better guidance.0) 5. 000 12.000 12.2) 32.G).000 2000 32.0002 2000 32. Cisco Nexus 7000 Series NX-OS Verified Scalability Guide 14 OL-25829-03 .Cisco Nexus 7000 Series NX-OS Verified Scalability Guide Configuration Limits for Multicast Routing Feature Parameter Verified Limit Verified Limit Verified Limit Verified Limit (Cisco NX-OS (Cisco NX-OS (Cisco NX-OS (Cisco NX-OS 6. and the rest were (S.000 2000 Internet Number of IGMP groups Group Management Number of MLD groups Protocol (IGMP) and Multicast Listener Discovery (MLD) Multicast Source Discovery Protocol (MSDP) PIM Number of MSDP source-active (SA) cache entries Number of MSDP peers Number of PIM IPv4 neighbors 12.2) 6.0) 5.1) 6.000 2000 32. Cisco recommends using default PIM hello timers combined with BFD for PIM. Note High availability (stateful switchover and ISSU) is not supported with aggressive PIM hello timers.000 6 1000 6 1000 Not tested 6 1000 Not tested 6 1000 Not tested Number of PIM IPv4 50 neighbors with aggressive hello/hold timers (1 second / 3 seconds) Number of PIM IPv6 neighbors 2 4000 mroutes were (*. 200 Not tested Not tested Not tested Note Cisco recommends M2 Series modules to achieve the highest multicast scale.000 12.G). 2) 256 Number of extended VLANs per system across all configured overlays Number of total MAC addresses across all sites Number of local MAC addresses per site Number of edge devices per site Number of OTV-connected sites Number of OTV overlays (simultaneous) 32.2(6) Note To achieve maximum VLAN and MAC address scale.000 16.000 16.000 8. Cisco recommends using one overlay.0) 256 Verified Limit (Cisco NX-OS 5.000 2 8 10 2 6 10 2 6 10 2 6 10 Number of instances (instance-id) 1 Number of local multicast routes Number of multicast data groups 4000 256 1 2000 256 1 2000 256 N/A 1 2000 256 N/A Number of secondary IP addresses 3 from Cisco N/A used for OTV traffic depolarization NX-OS Release 6.1) 256 Verified Limit (Cisco NX-OS 6.000 16.000 8.Cisco Nexus 7000 Series NX-OS Verified Scalability Guide Configuration Limits for OTV Configuration Limits for OTV Table 10: Configuration Limits for OTV Parameter Verified Limit (Cisco NX-OS 6.000 12.2) 1500 Verified Limit (Cisco NX-OS 6. Cisco Nexus 7000 Series NX-OS Verified Scalability Guide OL-25829-03 15 .000 8. and VTY) Number of sessions per system 1 Number of IP-SGT mappings Number of total bindings for DHCPv4 snooping Number of VLANs for DHCP snooping Number of total clients for DHCPv4 relay Number of total clients for DHCPv6 relay 50.2) 128 1024 16.1) NX-OS 6.000 10.000 50.000 Number of class maps per policy Number of matches in a class map Number of policers Configuration Limits for Security Table 12: Configuration Limits for Security Feature Parameter Verified Verified Verified Verified Limit (Cisco Limit (Cisco Limit (Cisco Limit (Cisco NX-OS 6.2) 128 1024 16. SNMP.000 Verified Limit (Cisco NX-OS Release 6.0) NX-OS 5.2) NX-OS 6.2) 1000 1000 1000 ACLs Maximum number of ACEs for 1000 application ACLs (used by NTP.0) 128 1024 16.1) 128 1024 16.000 ACL capture Cisco TrustSec DHCP 1 Not tested 4000 1000 4000 N/A 1000 16 1 Not tested Not tested Not tested Not tested N/A Not tested Not tested 1 Not tested Not tested Not tested Not tested N/A Not tested Not tested Number of DHCP relay agents 3960 Number of DHCP helper addresses for SVI 16 Cisco Nexus 7000 Series NX-OS Verified Scalability Guide 16 OL-25829-03 .000 4000 50.000 Verified Limit (Cisco NX-OS Release 6.Cisco Nexus 7000 Series NX-OS Verified Scalability Guide Configuration Limits for QoS Configuration Limits for QoS Table 11: Configuration Limits for QoS Parameter Verified Limit (Cisco NX-OS Release 6.000 Verified Limit (Cisco NX-OS Release 5. Cisco Nexus 7000 Series NX-OS Verified Scalability Guide Configuration Limits for System Management Each DHCP scale value might vary when combined with other parameters. 16 (Nexus 7700) 128 48 23 48 23 48 23 Number of source interfaces per SPAN or ERSPAN session 128 32 32 100 / 100 / 512 128 32 32 Not tested 128 32 32 Not tested Number of destination interfaces per 32 SPAN or ERSPAN session Number of source VLANs per SPAN 32 or ERSPAN session PTP/IEEE 1588 Number of clients behind a port 100 / 100 / 512 3 The highest scale was verified with UDP jitter and ICMP probes.0) NX-OS 5.2) 500 / 500 / 10003 500 2 N/A 2 N/A 2 IP SLA SPAN and ERSPAN Maximum number of probes configured Number of active SPAN or ERSPAN 14 (Nexus source sessions per system 7000).2) 3960 Guidelines and Limitations for DHCP Configuration Limits For Cisco NX-OS Release 6.2 and later releases. Parameter Number of SVIs with IPv4 and IPv6 DHCP relay configured together Verified Limit (Cisco NX-OS 6. Cisco Nexus 7000 Series NX-OS Verified Scalability Guide OL-25829-03 17 .2) NX-OS 6. 16 (Nexus 7700) Number of configured (not active) SPAN sessions per VDC Number of active ERSPAN destination sessions per system 48 23 (Nexus 7000).1) NX-OS 6.2 for better guidance. See this example of a scenario tested for Cisco NX-OS Release 6. you must enable the insertion of Option 82 information for DHCP packets to support the highest DHCP snooping scale. Configuration Limits for System Management Table 13: Configuration Limits for System Management Feature Parameter Verified Verified Verified Verified Limit (Cisco Limit (Cisco Limit (Cisco Limit (Cisco NX-OS 6. and any two can be combined to create a bidirectional session.2) 128. two SPAN extended sessions can be combined to create a bidirectional session. Otherwise.000 1500 1500 1500 1500 128. On the Cisco Nexus 7000 Series switch. See the Cisco Nexus 7000 Series NX-OS System Management Configuration Guide for more information.2) 6.Cisco Nexus 7000 Series NX-OS Verified Scalability Guide Configuration Limits for Unicast Routing Guidelines and Limitations for IP SLA Configuration Limits • To achieve the highest IP SLA probe scale. • Cisco recommends using Supervisor 2e to achieve the highest scale and the lowest RTT for IP SLA probes. round-trip times (RTTs) might vary. probes might experience timeouts. and a SPAN standard session can behave either as unidirectional or bidirectional. Configuration Limits for Unicast Routing Table 14: Configuration Limits for Unicast Routing Feature Parameter Verified Limit Verified Limit Verified Limit Verified Limit (Cisco NX-OS (Cisco NX-OS (Cisco NX-OS (Cisco NX-OS 6. The Cisco Nexus 7700 switch does not have standard and extended sessions.1) 6. so it is important to test locally and set the proper timeout value for IP SLA probes.000 Not tested Not tested Not tested Not tested 128. Cisco does not recommend setting the IP SLA probe timeout below 1 second. See the Cisco Nexus 7000 Series NX-OS IP SLAs Configuration Guide for more details.000 Number of ARP packets per second 1500 / 1500 / 5000 Number of ARP glean packets 1500 / 1500 / for second 5000 Number of IPv6 ND packets per second 1500 / 1500 / 2000 Number of IPv6 glean packets 1500 / 1500 / per second 6000 Cisco Nexus 7000 Series NX-OS Verified Scalability Guide 18 OL-25829-03 . you might need to add a specific CoPP configuration to allow the IP SLA generated packets to pass through. All SPAN sessions are unidirectional.0) 5. Guidelines and Limitations for SPAN Configuration Limits The number of SPAN sessions refers to unidirectional sessions. Generally.000 Not tested Not tested Not tested Not tested ARP/ND Number of entries in ARP table 128. • Even if CoPP is not dropping any IP SLA traffic. 000 16 / 6000 300 / 15.000 16 / 6000 OSPFv2 Number of neighbors / total LSAs4 Number of neighbors / total LSAs with aggressive timers (1s/4s)5 Number of passive interfaces Number of process instances per VDC Number of process instances per system Number of equal cost paths 3780 16 16 32 300 / 50.000 16 / 6000 300 / 15.000 16 16 32 500 16 16 16 300 / 15.000 300 / 15.000 250 / 50.1) 6.000 1280 16 16 32 300 250 600 30.2) 1000 / 100.Cisco Nexus 7000 Series NX-OS Verified Scalability Guide Configuration Limits for Unicast Routing Feature Parameter Verified Limit Verified Limit Verified Limit Verified Limit (Cisco NX-OS (Cisco NX-OS (Cisco NX-OS (Cisco NX-OS 6.0) 5.000 300 4 16 16 300 Not tested Not tested Not tested 4 16 16 500 4 16 16 300 / 15.000 300 16 16 16 300 Not tested Not tested Not tested 4 16 16 500 4 16 16 300 / 15.000 300 4 16 16 300 Not tested Not tested Not tested 4 16 16 OSPFv3 Number of neighbors / total LSAs6 Number of passive interfaces Number of process instances per VDC Number of process instances per system Number of equal cost paths IS-IS Number of neighbors Number of neighbors with aggressive timers (1s/3s) Number of passive interfaces Number of routes Number of process instances per VDC Number of process instances per system Number of equal cost paths Cisco Nexus 7000 Series NX-OS Verified Scalability Guide OL-25829-03 19 .2) 6. 000 4 16 16 1000 1000 512 20.000 Number of process instances per VDC Number of process instances per system Number of equal cost paths Static routing BGP Number of static routes Number of peers Number of AS-path entries 4 16 16 1000 1000 512 20.2(6) and later releases 16 16 32 4000 2000 512 Not tested Not tested 15.2) 6.000 32 32 3 million 512.000 Number of routes in BGP RIB 5.2) 500 300 2000 in 6. eBGP or iBGP.1) 6.000 16 32 3 million 512.000 900.000 Number of prefix-list entries in 20.Cisco Nexus 7000 Series NX-OS Verified Scalability Guide Configuration Limits for Unicast Routing Feature Parameter Verified Limit Verified Limit Verified Limit Verified Limit (Cisco NX-OS (Cisco NX-OS (Cisco NX-OS (Cisco NX-OS 6.000 in 6.000 16 N/A 3 million 512.2 million Number of unique attributes stored in BGP database Number of equal cost paths Number of paths advertised with BGP addpath7 920.000 900.000 100.000 a single prefix list Number of prefixes per peer (one peer.0) 5.000 50 50 EIGRP Number of neighbors Number of neighbors with aggressive timers (1s/3s) Number of passive interfaces Number of routes Not tested Not tested 15.2(6) and later releases 250 3960 50.000 16 N/A Cisco Nexus 7000 Series NX-OS Verified Scalability Guide 20 OL-25829-03 .000 4 16 16 1000 1000 512 20.000 Not tested Not tested 15.000 900. IPv4) 900. 2) 6.Cisco Nexus 7000 Series NX-OS Verified Scalability Guide Configuration Limits for Unicast Routing Feature Parameter Verified Limit Verified Limit Verified Limit Verified Limit (Cisco NX-OS (Cisco NX-OS (Cisco NX-OS (Cisco NX-OS 6.2) 500 N/A 500 N/A 500 N/A HSRP Number of groups per interface No limit or I/O module Number of groups with default 2000 / 2000 / timers (3s/10s) and multiple 4000 (with group optimization maximum 2000 master groups) Number of groups with default 2000 timers (3s/10s) Number of groups with aggressive timers (1s/3s) and extended hold timer features (in-service software upgrade [ISSU] / stateful switchover [SSO] support) 1000 2000 1000 2000 1000 2000 1000 Anycast HSRP Number of routers in Anycast HSRP group Number of Anycast HSRP bundles 4 64 (Nexus 7000) 128 (Nexus 7700) 200 2000 N/A N/A N/A N/A N/A N/A Number of groups per bundle Number of groups across all Anycast HSRP bundles N/A N/A 100 255 N/A N/A N/A 100 255 N/A N/A N/A 100 255 N/A VRRPv2 Number of groups per interface 100 or I/O module Number of groups with default 255 timers (1s/3s) VRRPv3 Number of groups with relaxed 255 / 255 / timers (3s/10s) and pathways 4000 (with maximum 2000 leader groups) Number of groups with relaxed 255 / 255 / timers (3s/10s) 2000 Number of groups with default 255 / 255 / timers (1s/3s) 1000 N/A N/A N/A N/A N/A N/A Cisco Nexus 7000 Series NX-OS Verified Scalability Guide OL-25829-03 21 .1) 6.0) 5. 1. 9 Not all dynamic routing protocols can support having peers in all of the supported VRFs. Cisco Nexus 7000 Series NX-OS Verified Scalability Guide 22 OL-25829-03 . • High availability (graceful restart. See examples of scenarios tested for Cisco NX-OS Release 6.1) 6. 8 With each new VDC configured.2. • Each OSPFv2 and OSPFv3 scale value might vary when combined with other parameters. Only 16 paths are active and programmed to the hardware in Cisco NX-OS Release 6. the number of configurable VRFs per system is reduced by two as each VDC has a default VRF and management VRFs that are not removable. All scenarios were tested with a single OSPF instance. stateful switchover. Guidelines and Limitations for All Unicast Routing Configuration Limits • 32-way ECMP is supported only with F2 and F2e Series modules and Cisco NX-OS Release 6. Beginning with Cisco NX-OS Release 6.1. The number of LSAs equals the number of routes. Guidelines and Limitations for OSPF Configuration Limits • Cisco recommends using Supervisor 2e for the highest scale and fastest convergence.2. 32 paths can be active and programmed to the hardware. The number of LSAs equals the number of routes.0) 5.2 with F2 or F2e Series modules. with 4 configured VDCs on Cisco NX-OS Release 6.3) Not tested 1000 Not tested 1000 Not tested Object tracking VRFs 500 Not tested 1000 Number of VRFs per system8. For example. • To achieve the highest scale. Refer to the individual protocol scale for more information. Cisco recommends using a single OSPF instance instead of multiple instances. 4000 9 4 5 6 7 The number of LSAs equals the number of routes.2 for better guidance.2) 6. you can configure up to 992 additional VRFs per system (either all in one VDC or across VDCs).2) 200 1000 500 500 200 1000 500 500 200 1000 500 500 GLBP Number of groups per interface 200 or I/O module Number of groups with default 1000 timers (3s/10s) Number of groups with aggressive timers (1s/3s) Number of groups with aggressive timers (1s/3s) and extended hold timer feature (ISSU/SSO support) 500 500 PBR Number of configured sequences per policy Number of objects tracked 23 23 (starting Not tested with Cisco NX-OS 6. and ISSU) is not supported when protocol aggressive timers are configured at any scale.Cisco Nexus 7000 Series NX-OS Verified Scalability Guide Configuration Limits for Unicast Routing Feature Parameter Verified Limit Verified Limit Verified Limit Verified Limit (Cisco NX-OS (Cisco NX-OS (Cisco NX-OS (Cisco NX-OS 6. 2) 300 + 600 + 30.000 + 250 Number of maximum neighbors + passive interfaces + total LSAs 300 + 1000 + 50.000 300 + 600 + 30. Cisco Nexus 7000 Series NX-OS Verified Scalability Guide OL-25829-03 23 . All scenarios were tested with a single IS-IS instance with IPv4 and IPv6 address families enabled on all peers and the total number of routes being a mix of IPv4 and IPv6 routes. Parameter Number of maximum neighbors + passive interfaces + total routes Number of maximum passive interfaces + neighbors + total routes Number of neighbors + passive interfaces + total routes with aggressive timers (1s/3s) Verified Limit (Cisco NX-OS 6.000 250 + 600 + 30.000 + + VRFs 300 Number of maximum passive interfaces + neighbors + total LSAs 1280 + 20 + 50. you must increase the graceful restart signal timer to 60 seconds. • Each IS-IS scale value might vary when combined with other parameters. • Each EIGRP scale value might vary when combined with other parameters. • To achieve the highest scale with high availability.000 Number of neighbors + passive interfaces + total LSAs + VRFs with aggressive timers (1s/4s) 100 + 300 + 25.000 Guidelines and Limitations for EIGRP Configuration Limits • The passive interface default was used.000 + 100 Guidelines and Limitations for IS-IS Configuration Limits • Cisco recommends using Supervisor 2e for the highest scale and fastest convergence. All scenarios were tested with a single EIGRP instance.000 Number of maximum passive interfaces + neighbors + total LSAs 3780 + 22 + 100.000 Number of neighbors + passive interfaces + total LSAs + VRFs with aggressive timers (1s/4s) 250 + 750 + 50. See these examples of scenarios tested for Cisco NX-OS Release 6.2 for better guidance.2 for better guidance. Feature OSPFv2 OSPFv2 OSPFv2 OSPFv2 OSPFv3 OSPFv3 OSPFv3 Parameter Verified Limit (Cisco NX-OS 6. See these examples of scenarios tested for Cisco NX-OS Release 6. • The passive interface default was used.2) Number of maximum neighbors + passive interfaces + total LSAs 1000 + 2899 + 100.Cisco Nexus 7000 Series NX-OS Verified Scalability Guide Configuration Limits for Unicast Routing • The graceful restart timeout value might need to be increased in multi-dimensional scenarios.000 + + VRFs 300 Number of maximum neighbors + passive interfaces + total LSAs 1003 + 2899 + 100. 25% IPv6) Number of routes in BGP RIB (75% IPv4.000+1000 in 6. 25% IPv6) Number of maximum iBGP peers + eBGP peers + total routes (75% IPv4. • All scenarios were tested with the minimum and maximum configured u4route-mem and u6route-mem under the VDC as 350 MB/110 MB respectively. 25% IPv6) Verified Limit (Cisco NX-OS 6. and GLBP Configuration Limits • The number of HSRPv2 and VRRPv3 groups can be IPv4 only.2) 300 + 2000 + 30.2 million Number of eBGP peers with Internet feed (440. VRRP.000 + 250 timers (1s/3s) Guidelines and Limitations for BGP Configuration Limits • Each BGP scale value might vary when combined with other parameters.2(6) and later releases Number of neighbors + passive interfaces + routes + VRFs with aggressive 250 + 1000 + 50.Cisco Nexus 7000 Series NX-OS Verified Scalability Guide Configuration Limits for Unicast Routing Parameter Number of neighbors + passive interfaces + routes + VRFs Verified Limit (Cisco NX-OS 6.000 IPv4 routes. IPv6 only.000 5. • All values were tested with default BGP keepalive and hold timers. Cisco Nexus 7000 Series NX-OS Verified Scalability Guide 24 OL-25829-03 .000 IPv6 12 routes) Guidelines and Limitations for HSRP. 12.000 + 30 2000+3960+100.000 1750 + 250 + 50. if Cisco NX-OS supports 4000 HSRP groups.2) 1750 + 250 + 50.2 for better guidance. • The same FHRP group ID or different group IDs can be used in different VLANs and within the same VLAN for IPv4 and IPv6 groups. or a combination of both. See these examples of scenarios tested for Cisco NX-OS Release 6. it can also support 4000 VLANs with each running HSRP IPv4 groups or 2000 dual-stacked VLANs. Parameter Number of maximum eBGP peers + iBGP peers + total routes (75% IPv4. For example. 0) 4 (including 1 default VDC) N/A N/A 64 Verified Limit (Cisco NX-OS 5.2) Verified Limit (Cisco NX-OS 6.2) 4 (including 1 default VDC) N/A N/A 64 VDCs with Supervisor 4+1 (with admin 1 VDC feature) VDCs with Supervisor 4+1 (with admin 2 VDC feature) VDCs with Supervisor 8+1 (with admin 2e VDC feature) VDC resource templates 64 Cisco Nexus 7000 Series NX-OS Verified Scalability Guide OL-25829-03 25 .1) 4 (including 1 default VDC) 4+1 (with admin VDC feature) 8+1 (with admin VDC feature) 64 Verified Limit (Cisco NX-OS 6.Cisco Nexus 7000 Series NX-OS Verified Scalability Guide Configuration Limits for VDCs Configuration Limits for VDCs Table 15: Configuration Limits for VDCs Feature Verified Limit (Cisco NX-OS 6. Cisco Nexus 7000 Series NX-OS Verified Scalability Guide Configuration Limits for VDCs Cisco Nexus 7000 Series NX-OS Verified Scalability Guide 26 OL-25829-03 .
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