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Cisco Nexus 3548 Switch Verified Scalability Guide for Cisco NX-OS Release 5.0(3)A1(1) and 5.0(3)A1(2)

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Verified Scalability

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

3

4 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

10

4 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.