Cisco Nexus 3000 Series Switch NX-OS Verified Scalability Guide, Release 7.x

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Book Title

Cisco Nexus 3000 Series Switch NX-OS Verified Scalability Guide, Release 7.x

Chapter Title

Verified Scalability

Results

Updated:
November 23, 2017

Chapter: Verified Scalability

Verified Scalability

This document includes the following sections:

Verified Scalability for Cisco Nexus 3000 Series and 3100 Series Cisco NX-OS

The following table lists the Cisco verified limits for Cisco Nexus 3100 Series topologies with ALPM modes.

Note

If the verified maximum values are exceeded in an ALPM or a non-ALPM mode, you get a table full syslog even in the hash collision scenario.

Table 1 Cisco Nexus 3100 Series Topologies with ALPM Modes

Feature

Verified Topology1

Verified Maximum2

ECMP paths

16

16

IPv4 LPM routes (No IPv6 carving)

40k

128K (with system urpf disabled)

64k (with system urpf enabled)

IPv6 LPM routes (No IPv6 carving)

40k

80K (with system urpf disabled)

20K (with system urpf enabled)

IPv4 LPM routes (IPv6 carve value 1024)

96K (with system urpf disabled)

IPv6 LPM routes (IPv6 carve value 1024)

5K (withsystem urpf disabled)

IPv4 LPM routes (IPv6 carve value 2048)

64K (with system urpf disabled)

32K (with system urpf enabled)

IPv6 LPM routes (IPv6 carve value 2048)

5K (with system urpf disabled)

2K (with system urpf enabled)

IPv4 LPM routes (IPv6 carve value 3072)

32K (with system urpf disabled)

IPv6 LPM routes (IPv6 carve value 3072)

15K (with system urpf disabled)

Mac address table

20k

32K

1 Verified Topology-- Indicates the verified scaling capabilities with all listed features enabled at the same time.
2 Indicates the maximum scale capability tested for the corresponding feature individually.

Note

For Verified Maximum, 16 path ECMP is tested with 40K IPv4 and 40K IPv6.

The following table lists the Cisco verified limits for Cisco Nexus 3000 Series topologies that include Layer 2 and Layer 3 feature configurations.


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.

Table 2 Cisco Nexus 3000 Series Layer 2 and Layer 3 Topology Configuration Limits

Feature

Verified Topology3

Verified Maximum4

Active VLANs per switch

507 (MSTP)

4,0005

STP logical interfaces

395 (MST mode)

9,000

MST instances

65

65

MAC table size (non-vPC)6

128,000

128,000

MAC table size (vPC)

40,000

40,000

EtherChannel Members

18

32

Number of switch port EtherChannels

8

64

Number of system logging destination ports

8

8

SPAN sessions

2 active sessions

2 active sessions7

Layer 3 SVI, subinterfaces, EtherChannels

360

1,024

VRF

10

1,0008

IPv4 hosts

4,000 (Nexus 3064PQ)

8,000 (Nexus 3064PQ)

16,000 (All other Nexus 3000 Series platforms)

IPv6 hosts

15009

8,000

IPv4 routes (LPM)

4000 (with system urpf disabled)

16,000 (with system urpf disabled)

8,192 (with system urpf enabled)

IPv6 routes (LPM less than or equal to 64 bits)10

4,000 (with system urpf disabled)

8,000 (with system urpf disabled)

4,000 (with system urpf enabled)

IPv6 routes (LPM greater than 64 bits and less than or equal to 127 bits)11

256 (with system urpf disabled)

128 (with system urpf enabled)

Multicast routes

2,000 (Nexus 3064PQ)

4,000 (Nexus 3064PQ)

8,000 (All other Nexus 3000 Series platforms)

IGMP Snooping groups

1,000

8,000

ECMP

48-way

64-way

TCAM entries for ACL

1,664 ingress, 1,024 egress

HSRP

100

500

VRRP

20012

25513

Configurable QoS groups

8

HSRPv6

100

500

BFD neighbors

64

64

BFDv6 neighbors

32

64

BGPv4 neighbors (vPC)

97

141

BGPv4 neighbors (non-vPC)

141

BGPv6 neighbors (vPC)

33

128

BGPv6 neighbors (non-vPC)

128

sFlow

10

6414

3 Verified Topology-- Indicates 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.
4 Indicates the maximum scale capability tested for the corresponding feature individually. This number is the absolute maximum currently supported by Cisco NX-OS Release 6.0(2)U2(1) software for the corresponding feature. If the hardware is capable of a higher scale, future software releases may increase this verified maximum limit.
5 507 VLANs in PVRST mode. 512 VLANs in RPVST mode where 507 are user-defined VLANs, and 4,000 VLANs in MST mode.
6 The probability of MAC collisions increases with scale.
7 4 active SPAN sessions with the SPAN source in a single direction (RX only or TX only in each SPAN session). 2 active SPAN sessions with the SPAN source in both RX and TX directions.
8 This number includes the management and default VRF.
9 With system urpf disabled in verified topology.
10 IPv6 will use up 2 entries for every route in the hardware.
11 IPv6 will use up 2 entries for every route in the hardware.
12 A combination of HSRP and VRRP groups, where the total is 400.
13 A combination of HSRP and VRRP groups, where the total is 500.
14 With default sFlow sampling-rate of 4096

Verified Scalability for Cisco Nexus 3132Q, Cisco Nexus 3132Q-V, and Cisco Nexus 3132Q-X

The table in this section lists the Cisco verified limits for Cisco Nexus 3132Q, Cisco Nexus 3132Q-V, and Cisco Nexus 3132Q-X topologies that include Layer 2 and Layer 3 feature configurations.

Note

Cisco NX-OS Release 6.0(2)U2(1) introduced the Cisco Nexus 3132Q switch and Cisco NX-OS Release 6.0(2)U4(1) introduced the Cisco Nexus 3132Q-X switch. Cisco NX-OS Release 7.0(3)I4(1) introduced the Cisco Nexus 3132Q-V switch.


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.
Table 3  Cisco Nexus 3132Q, Cisco Nexus 3132Q-V, and Cisco Nexus 3132Q-X Layer 2 and Layer 3 Topology Configuration Limits

Feature

Verified Topology

Verified Maximum

Active VLANs per switch

507 (MSTP)

507 (RSTP)

4013 (MSTP)15

MTU

9,216

STP logical interfaces

329 (MST mode)

9,000

MST instances

65

65

MAC table size (non-vPC) 16

131,072

MAC table size (vPC)

40,960

131,072

EtherChannel members

16

32

Number of switch port EtherChannels

7

32

Number of system logging destination ports

8

SPAN sessions

2 active sessions17

Layer 3 physical interfaces

64

Layer 3 SVI, subinterfaces, EtherChannels

355

1,024

VRF

1000 18

IPv4 hosts

4,000

16,384

Note    Multicast is 0

IPv6 host routes

140019

4,096

Note    4,096 reserved for multicast

IPv4 routes (LPM)

4000 (with system urpf disabled)

15360 (with system urpf disabled)

7680 (with system urpf enabled)

IPv6 routes (LPM <=64 bits)20

4000 (with system urpf disabled)

6144 (with system urpf disabled)

2048 (with system urpf enabled)

IPv6 routes (LPM greater than 64 bits and less than or equal to 127 bits) 21

256 (with system urpf disabled)

128 (with system urpf enabled)

Multicast routes

2000 routes (without TCAM carving)

8,000 routes

IGMP Snooping groups

1000

8,000

ECMP

48-way

64-way

TCAM entries for ACL

2048 ingress

512 egress

BGP neighbors

96

140

BGPv6

32

128

OSPF neighbors

8

128

OSPFv3

8

128

HSRP

100

500

VRRP

200

255

Configurable QoS groups

8

HSRPv6

100

500

BFD neighbors

64

104

BFDv6 neighbors

104

Telnet session

64

SSH

32

SNMP Servers

8

15 Number of existing VLANs—4013 , Number of existing user VLANs—1005 , Number of existing extended VLANs—3008
16 The probability of MAC collisions increases with scale.
17 4 active SPAN sessions with the SPAN source in a single direction (RX only or TX only in each SPAN session). 2 active SPAN sessions with the SPAN source in both RX and TX directions.
18 This number includes the management and default VRF.
19 IPv6 will use up 2 entries for every route in the hardware
20 IPv6 will use up 2 entries for every route in the hardware.
21 IPv6 will use up 2 entries for every route in the hardware.

Verified Scalability for Cisco Nexus 3172PQ and Cisco Nexus 31108PC-V

The following table lists the Cisco verified limits for Cisco Nexus 3172PQ and Cisco Nexus 31108PC-V topologies that include Layer 2 and Layer 3 feature configurations.

Note

Cisco NX-OS Release 6.0(2)U2(4) introduced the Cisco Nexus 3172PQ switch and Cisco NX-OS Release 7.0(3)I4(1) introduced the Cisco Nexus 31108PC-V switch.


Note

If your scale requirements exceed the Verified Topology, 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.

Table 4  Cisco Nexus 3172PQ and Cisco Nexus 31108PC-V Layer 2 and Layer 3 Topology Configuration Limits

Feature

Verified Topology22

Verified Maximum23

Active VLANs per switch

507 (MSTP)

507 (RSTP)

4013 (MSTP)24

MTU

9,216

STP logical interfaces

395 (MSTP)

9,000

MST instances

65

65

MAC table size (non-vPC)

98,000

MAC table size (vPC)

40,000

98,000

EtherChannel Members

18

24

Number of switch port EtherChannels

8

10

Number of system logging destination ports

8

SPAN sessions

2 active sessions

Layer 3 physical interfaces

24

Layer 3 SVI, subinterfaces, EtherChannels

355

1,024

VRF

1,000

IPv4 hosts

4,000

16384

Note    Multicast is 0

IPv6 hosts

140025

4090

Note    4K reserved for multicast

IPv4 LPM routes

4000 (with system urpf disabled)

15360 (with system urpf disabled)

IPv6 routes LPM <=64

4000 (with system urpf disabled)

6144 (with system urpf disabled)

Multicast routes

2000 routes

8,000 routes

IGMP Snooping groups

1000

8,000

ECMP

32-way

64-way

TCAM entries for ACL

2,048 ingress

512 egress

BGP neighbors

96

140

BGP6

32

128

OSPF neighbors

8

128

OSPFv3 neighbors

8

 

HSRP

100

500

HSRPv6

100

 

VRRP

200

 

Configurable QoS groups

8

BFD neighbors

64

104

Telnet sessions

64

SSH

32

SNMP Servers

8

22 Indicates 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.
23 Indicates the maximum scale capability tested for the corresponding feature individually. This number is the absolute maximum currently supported for the corresponding feature. If the hardware is capable of a higher scale, future software releases may increase this verified maximum limit.
24 Number of existing VLANs—4013, Number of existing user VLANs—1005, Number of existing extended VLANs—3008
25 IPv6 will use up 2 entries for every route in the hardware.

Verified Scalability for Cisco Nexus 31108TC-V

Cisco NX-OS Release 7.0(3)I4(1) introduced the Cisco Nexus 31108TC-V switch. The following table lists the Cisco verified limits for Cisco Nexus 31108TC-V topologies that include Layer 2 and Layer 3 feature configurations.


Note

If your scale requirements exceed the Verified Topology, 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.

Feature

Verified Topology26

Verified Maximum27

Active VLANs per switch

507(MSTP)

507(RSTP)

4013 (MSTP)

MTU

9,216

STP logical interfaces

200 (MSTP)

9,000

MST instances

65

65

MAC table size (vPC)

40,000

98,000

EtherChannel Members

16

24

Number of switch port EtherChannels

7

10

Number of system logging destination ports

8

SPAN sessions

2 active sessions

L3 physical interfaces

24

Layer 3 SVI, subinterfaces, Port-Channels

355

1024

VRF

1000

IPv4 Hosts

4000

16384
Note   

multicast is 0

IPv6 Hosts

1300

4090
Note   

4k reserved for multicast

IPv4 routes (LPM)

4000 (with system urpf disabled)

15360 (with system urpf disabled)

IPv6 routes (LPM)

4000 (with system urpf disabled)

6144 (with system urpf disabled)

Multicast routes

2000 routes

8000 routes

IGMP Snooping groups

1000

8000

ECMP

32-way

64-way

TCAM entries for ACL

 

2048 ingress

512 egress

BGP neighbors

96

140

BGPv6

32

128

OSPF neighbors

8

128

OSPFv3

8

128

HSRP

100

500

HSRPv6

100

 

VRRP

200

 

Configurable QoS groups

8

BFD Neighbors

64

104

Telnet sessions

64

SSH

32

SNMP Servers

8

26 Indicates 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.
27 Indicates the maximum scale capability tested for the corresponding feature individually. This number is the absolute maximum currently supported for the corresponding feature. If the hardware is capable of a higher scale, future software releases may increase this verified maximum limit.

Verified Scalability for Cisco Nexus 3132Q and 3172PQ Series Switches

VXLAN Flood and Learn

Layer 2 VNI

640

Underlay multicast groups

500

Overlay MAC addresses

64,000

VTEPs

640

Ingress replication peers

640

Ingress replication Layer 2 VNIs

640

MAC addresses for ingress replication

64,000

Local MAC (MAC on vpc leg)

64,000

Verified Scalability for Cisco Nexus 3132Q-V, 31108PC-V, and 31108TC-V Series Switches


Note
Starting with Release 7.0(3)I5(1), you can configure upto 2034 Layer 2 VNIs with 32 static ingress replication peers on the following Cisco Nexus 3000 Series platforms:

  • C3132Q-V

  • C31108TC-V

  • C31108PC-V

VXLAN Flood and Learn

Layer 2 VNI

640

Underlay multicast groups

200

VTEPs

640

MAC addresses

64,000

VXLAN BGP eVPN

Layer 2 VNI

640

Layer 3 VNI/VRFs

320

Underlay multicast groups

200

VTEPs

32

MAC addresses

64,000

IPv4 host routes

8,000

IPv6 host routes

4,000

Overlay IPv4 LPM routes

8,000

Overlay IPv6 LPM routes

4,000

VXLAN BGP eVPN Ingress Replication

Layer 2 VNI

640

Underlay multicast groups

320

VTEPs

32

MAC addresses

64,000

IPv4 host routes

8,000

IPv6 host routes

4,000

Overlay IPv4 LPM routes

8,000

Overlay IPv6 LPM routes

4,000

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