Verified Scalability Limits
This document describes the Cisco NX-OS configuration limits for the Cisco Nexus 9508 switch with an X9636C-R, X9636C-RX, or X9636Q-R line card or a C9508-FM-R fabric module.
Introduction
The values provided in this guide should not be interpreted as theoretical system limits for Cisco Nexus 9000 Series hardware or Cisco NX-OS software. These limits refer to values that have been validated by Cisco. They can increase over time as more testing and validation is done.
Verified Scalability Limits (Unidimensional)
The tables in this section list the verified scalability limits for Cisco NX-OS Release 7.0(3)F3(4). These limits are validated with a unidimensional configuration. The values provided in these tables focus on the scalability of one particular feature at a time.
Each number is the absolute maximum currently supported by this Cisco NX-OS release for the corresponding feature. If the hardware is capable of a higher scale, future software releases might increase this verified maximum limit. Results might differ from the values listed here when trying to achieve maximum scalability with multiple features enabled.
Feature |
Verified Limit |
---|---|
Port channel member links |
32 |
SVIs |
3,967 |
vPCs |
255 |
Feature |
Verified Limit |
---|---|
Forwarding Equivalence Classes (FECs) |
1,000 |
Equal-cost multipaths (ECMPs) |
8-way |
FECs ECMPs |
8,000 |
IAS option B labels |
450,000 |
Layer 3 VPN routes |
450,000 |
Feature |
Verified Limit |
---|---|
MAC addresses |
192,000 |
MST instances |
64 |
MST virtual ports |
236,000 |
RPVST virtual ports |
13,750 |
VLANs |
3,967 |
VLANs in RPVST mode |
250 |
Feature |
Verified Limit |
---|---|
IPv4 multicast routes |
32,000 (Layer 3) |
Outgoing interfaces (OIFs) |
16 OIFs for 32K mroutes or 287 OIFs for 1000 mroutes |
PIM neighbors |
500 |
Feature |
Verified Limit |
---|---|
IPv4 ingress access control entries (ACEs) |
RACL on LC N9K-X9636C-RX: 100,000 PACL on LC N9K-X9636C-RX: 12,000 RACL-2048, PACL-1024 (without TCAM Carving) IPv4 52640 ACEs per system PACL IPv4: 1024 TCAM entries in internal TCAM PACL MAC: 2048 TCAM entries in internal TCAM RACL IPv4: 2048 TCAM entries in internal TCAM |
IPv6 ingress access control entries (ACEs) |
RACL-1024, PACL-1024 (without TCAM Carving) IPv6 25200 ACEs per system PACL IPv6: 1024 TCAM entries in internal TCAM RACL IPv6: 1024 TCAM entries in internal TCAM |
Feature |
Verified Limit |
---|---|
SPAN and ERSPAN |
|
Configurable SPAN or ERSPAN sessions |
32 |
Active SPAN or ERSPAN sessions |
32 |
Active localized SPAN or ERSPAN session per line card |
32 sessions across ports on single line card |
Active localized SPAN or ERSPAN session (Rx and Tx, Rx, or Tx) |
32 sessions, 128 sources and 1 destination |
Destination interfaces per SPAN session |
1 |
Source VLANs per SPAN or ERSPAN |
32 |
PTP ports |
64 |
Feature |
Verified Limit |
---|---|
BFD sessions (echo mode) |
288 |
BGP neighbors |
272 |
HSRP groups |
490 |
IPv4 ARP |
48,000 |
IPv4 host routes |
750,000 (X9636C-R) 1,000,000 (X9636C-RX) |
IPv6 host routes |
62,000 256,000 (X9636C-RX) |
IPv6 ND |
32,000 |
IPv4 unicast routes (LPM) |
192,000 (X9636C-R) 1,000,000 (X9636C-RX) |
IPv6 unicast routes (LPM) |
62,000 256,000 (X9636C-RX) |
OSPFv2 neighbors |
1,000 |
OSPFv3 neighbors |
1,000 |
OSPF/OSPFv3 LSA/LSDB size |
250,000 |
OSPF/OSPFv3 areas |
15 |
VRFs |
3,967 |
VRRP groups per interface or I/O module |
16 |
Feature |
Verified Limit |
---|---|
VXLAN BGP eVPN |
|
Layer 3 VNIs / VRFs |
100 |
VTEPs |
256 |
IPv4 host routes |
128,000 |
IPv6 host routes |
32,000 |
Feature |
Verified Limit |
---|---|
Groups with default timers (3s/10s) and multiple group optimization. [There are 2 primary, one for IPv4 and the other for IPv6, and 7926 secondary] |
7,928 |
Groups with aggressive timers (1s/3s) and multiple groups optimization. [There are 2 primary, one for IPv4 and the other for IPv6, and 7926 secondary]1 |
7,928 |
Groups per interface or I/) module |
Maximum 16 (Because 16 is the unique virtual MAC address limit) |
Verified Scalability Limits (Multidimensional)
The tables in this section list the verified scalability limits for Cisco NX-OS Release 7.0(3)F3(4). These limits are validated with a multidimensional configuration. The values provided in these tables focus on the scalability of one particular feature at a time.
Each number is the absolute maximum currently supported by this Cisco NX-OS release for the corresponding feature. If the hardware is capable of a higher scale, future software releases might increase this verified maximum limit. Results might differ from the values listed here when trying to achieve maximum scalability with multiple features enabled.
Attention |
These numbers are not the maximum verified values if each feature is viewed in isolation. For these numbers, see the "Verified Scalability Limits" section. |
Feature |
Verified Limit |
---|---|
Number of 100G ports |
288 |
ECMP |
16-way (Upstream) |
BGP neighbors |
960 |
BGP IPv4 /32 unicast routes |
30,000 |
BGP IPv4 VLSM unicast routes |
18,000 |
BGP IPv6 /128 unicast routes |
16,000 |
BGP IPv6 VLSM unicast routes |
1,000 |
ISIS v2 neighbors |
255 |
ISIS v3 neighbors |
255 |
ISIS L2 adjacency |
16 |
ISIS IPv4 /32 unicast routes |
20,000 |
ISIS IPv4 VLSM unicast routes |
1,000 |
ISIS IPv6 /128 unicast routes |
20,000 |
ISIS IPv6 VLSM unicast routes |
1,000 |
BFD sessions |
272 |
PIM neighbors |
256 |
ACL ACEs |
15,000 500 |
Sub-interfaces |
712 |
SPAN sessions |
1 local SPAN session |
Multicast SSM |
20,000 |
Feature |
Verified Limit |
---|---|
Number of 100G ports |
180 |
Number of 40G ports |
108 |
ECMP |
8-way (Upstream) |
BGP neighbors |
8 |
BGP IPv4 VLSM unicast routes |
40,000 |
BGP IPv6 VLSM uniast routes |
10,000 |
OSPFv2 neighbors |
108 |
OSPFv3 neighbors |
30 |
OSPF IPv4 /32 unicast routes |
100,000 |
OSPF IPv4 VLSM unicast routes |
155,000 |
OSPFv3 IPv6 /128 unicast routes |
1,000 |
OSPFv3 IPv6 VLSM unicast routes |
9,000 |
BFD sessions |
108 |
VRF |
250 |
PIM neighbors |
108 |
IPv4 (*,G) multicast routes |
2,000 |
IPv4 (S,G) multicast routes |
10,000 |
ACL ACEs |
500 (IPv4) 500 (IPv6) |
SPAN sessions |
1 local SPAN session |
Feature |
Verified Limit |
---|---|
Number of 100G ports |
180 |
Number of 40G ports |
108 |
ECMP |
16-way (Upstream) |
BGP neighbors |
8 |
BGP IPv4 VLSM unicast routes |
40,000 |
BGP IPv6 VLSM uniast routes |
10,000 |
EIGRP v4 neighbors |
276 |
EIGRP v6 neighbors |
276 |
EIGRP IPv4 /32 unicast routes |
30,000 |
EIGRP IPv4 VLSM unicast routes |
1,000 |
EIGRP IPv6 /128 unicast routes |
30,000 |
EIGRP IPv6 VLSM unicast routes |
1,000 |
BFD sessions |
276 |
VRF |
250 |
PIM neighbors |
276 |
IPv4 (*,G) multicast routes |
6,000 |
IPv4 (S,G) multicast routes |
16,000 |
ACL ACEs |
500 (IPv4) 500 (IPv6) |
SPAN sessions |
1 local SPAN session |
Feature |
Verified Limit |
---|---|
MPLS L3VPN |
3967 |
6VPE |
3967 |
6PE nodes |
3 |
6PE routes |
20,000 |
X9636C-RX line card: ACL scale-IPv4 |
95,000 |
X9636C-RX line card: ACL scale-IPv6 |
20,000 |
HSRP, HSRP VIP |
3967 each for v4 and v6 |
vPC uRPF |
3967 |
Strict uRPF |
Yes |
VRF |
3967 |
SVI |
3967 |
Layer 3 VPN routes IP ECMP |
2,000 |
MPLS LSR ECMP |
2,000 |
VPNv4 routes |
400,000 |
VPNv6 routes |
90,000 |
EBGP neighbors |
750 |
Feature |
Verified Limit |
---|---|
Number of 100G ports |
72 |
Number of 40G ports |
36 |
vPC Port channels |
31 |
ECMP |
8-way (Upstream) |
OSPFv2 neighbors |
47 |
OSPFv3 neighbors |
47 |
OSPF IPv4 /32 unicast routes |
45,000 |
OSPF IPv4 VLSM unicast routes |
1,000 |
OSPF IPv6 /128 unicast routes |
25,000 |
OSPF IPv6 VLSM unicast routes |
1,000 |
BFD sessions |
49 |
VRF |
250 |
VLAN |
3,750 |
SVI |
3,750 |
VRRP IPv4 groups |
1,996 VRRS / 4 VRRPv3 |
VRRP IPv6 groups |
1,996 VRRS / 4 VRRPv3 |
HSRP IPv4 |
1,743 Secondary groups / 7 Primary groups |
HSRP IPv6 |
1,743 Secondary groups / 7 Primary groups |
PIM neighbors |
396 |
IPv4 (*,G) multicast routes |
3,080 |
IPv4 (S,G) multicast routes |
26,600 |
IGMP snooping database entries |
6,400 |
sFow enabled interfaces |
65 |
UDLD enabled interfaces |
70 |
SPAN sessions |
1 local SPAN session |
Feature |
Verified Limit |
---|---|
VLAN |
100 |
SVI |
100 |
MAC entries |
10,000 |
ARP entries |
70 |
HSRPv4 VIPs |
100 |
HSRpv6 VIPs |
100 |
LACP |
11 |
LACP members |
4 |
eBGP IPv6 neighbors |
9 |
eBGP IPv4 LU neighbors |
9 |
IPv4 (LU) routes |
6888 |
IPv4 (LU) paths |
17580 |
IPv6 routes |
6,663 |
IPv4 (LU) routes |
17,338 |
SR ECMP |
18 (dual-homed) |
MPLS HW entries |
11,957 |
Feature |
Verified Limit |
---|---|
Number of ports |
16 |
ECMP |
8-way (Upstream) |
BGP neighbors |
200 |
BGP EVPN Layer 2 VPN host routes |
64,000 |
BGP IPv4 VLSM unicast routes or OSPF |
10,000 |
BGP IPv6 VLSM unicast routes or OSPF |
6,000 |
BFD sessions |
20 |
PIM neighbors |
20 |
IPv4 (*,G) multicast routes (co-existing) |
4,000 |
IPv4 (S,G) multicast routes (co-existing) |
2,000 |
Layer 3 VNI |
100 |
Layer 2 VNI |
400 |
Local VTEP |
1 |
Remote VTEPs |
205 |
VLAN |
400 |
SVI |
100 |
MAC |
80,000 |