Contents
Verified Scalability
Cisco Nexus 3548 Switch Verified Scalability for NX-OS Releases
This document lists the Cisco verified limits for topologies that include Layer 2 and Layer 3 feature configurations.
In the following tables, the Verified Topology column lists the verified scaling capabilities with all listed features enabled at the same time. The numbers listed here exceed those used by most customers in their topologies. The scale numbers listed here are not the maximum verified values if each feature is viewed in isolation.
The Verified Maximum column lists the maximum scale capability tested for the corresponding feature individually. This number is the absolute maximum currently supported by the Cisco NX-OS Release software for the corresponding feature. If the hardware is capable of a higher scale, future software releases may increase this verified maximum limit.
Note
If your scale requirements exceed either the Verified Topology or the Verified Maximum limit, please contact your Cisco representative. Based on your requirements, it may be possible to validate support for your requirement, as long as the scale capability of the hardware is not exceeded.
Cisco NX-OS Release 5.0(3)A1(1)
Table 1 Cisco NX-OS Release 5.0(3)A1(1) Layer 2 and Layer 3 Topology Configuration Limits Feature
Verified Topology
Verified Maximum
Active VLANs per switch
5121
5122
MTU
9,216
9,216
STP logical interfaces
2,500
9,000
MST instances
63
64
MAC table size
8,192
65,532
Port Channels
8
24
Number of member ports per Port Channel
16
24
Number of system logging destination ports
0
8
SPAN sessions
4 active sessions
34 active bi-directional sessions4
1 destination ports per session
Layer 3 physical interfaces
10
48
Layer 3 SVI, subinterfaces, EtherChannels
256
1,024
VRF
10
200
IPv4 hosts
4,096
65,536
IPv4 routes (LPM)
8192 (Normal Traffic Forwarding mode)
4096 (Warp mode)
16,384 (Normal Traffic Forwarding mode)
4096 (Warp mode)
Multicast routes
7,990
8,192
IGMP Snooping groups
3,000
8,000
ECMP5
2-way
32-way
TCAM entries for ACL
384 ingress (Normal Traffic Forwarding mode)
128 ingress (Warp mode)
3,000 ingress, 1,000 egress
HSRP
256
500
VRRP
2506
2507
Configurable QoS groups
4
4
BGP neighbors
85
85
OSPF neighbors
150 (in a single area, area 0)
150 (in a single area, area 0)
PIM neighbors
250
250
NAT translations
—
1023
1 507 VLANs in PVRST mode. 512 VLANs in RPVST mode where 507 are user-defined VLANs, and 512 VLANs in MST mode.2 507 VLANs in PVRST mode. 512 VLANs in RPVST mode where 507 are user-defined VLANs, and 4,000 VLANs in MST mode.3 Allows same SPAN source in a single direction in 2 SPAN sessions with difference destinations.4 4 active SPAN sessions regardless of the direction of the SPAN session.5 Only supported in Normal Traffic Forwarding mode.6 A combination of HSRP and VRRP groups, where the total is 250.7 A combination of HSRP and VRRP groups, where the total is 250.Cisco NX-OS Release 5.0(3)A1(2)
Table 2 Cisco NX-OS Release 5.0(3)A1(2) Layer 2 and Layer 3 Topology Configuration Limits Feature
Verified Topology
Verified Maximum
Active VLANs per switch
5128
5129
MTU
9,216
9,216
STP logical interfaces
2,500
9,000
MST instances
63
64
MAC table size
8,192
65,532
Port Channels
8
24
Number of member ports per Port Channel
16
24
Number of system logging destination ports
0
8
SPAN sessions
4 active sessions
104 active bi-directional sessions11
1 destination ports per session
Layer 3 physical interfaces
10
48
Layer 3 SVI, subinterfaces, EtherChannels
256
1,024
VRF
10
200
IPv4 hosts
4,096
65,536
IPv4 routes (LPM)
8192 (Normal Traffic Forwarding mode)
4096 (Warp mode)
24,000 (Normal Traffic Forwarding mode)
4096 (Warp mode)
Multicast routes
7,990
8,192
IGMP Snooping groups
3,000
8,192
ECMP12
2-way
32-way
TCAM entries for ACL
384 ingress (Normal Traffic Forwarding mode)
128 ingress (Warp mode)
3,000 ingress, 1,000 egress
HSRP
256
500
VRRP
25013
25014
Configurable QoS groups
4
4
BGP neighbors
85
85
OSPF neighbors
150 (in a single area, area 0)
150 (in a single area, area 0)
PIM neighbors
250
250
NAT translations
—
1023
8 507 VLANs in PVRST mode. 512 VLANs in RPVST mode where 507 are user-defined VLANs, and 512 VLANs in MST mode.9 507 VLANs in PVRST mode. 512 VLANs in RPVST mode where 507 are user-defined VLANs, and 4,000 VLANs in MST mode.10 Allows same SPAN source in a single direction in 2 SPAN sessions with difference destinations.11 4 active SPAN sessions regardless of the direction of the SPAN session.12 Only supported in Normal Traffic Forwarding mode.13 A combination of HSRP and VRRP groups, where the total is 250.14 A combination of HSRP and VRRP groups, where the total is 250.Copyright © 2012, Cisco Systems, Inc. All rights reserved.