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New Member

Mac Address Limit

Hello,

I would like to know the limit of mac address for this switch 3750X,

I configured the sdm value to this

The current template is "desktop routing" template.
The selected template optimizes the resources in
the switch to support this level of features for
8 routed interfaces and 1024 VLANs.

  number of unicast mac addresses:                  3K

                  

I would like to know if this will limit the quantity of mac address that can handle the Switch.

Regards,

Everyone's tags (4)
4 REPLIES
Silver

Mac Address Limit

Is there a reason why you want to know the number of MAC addresses?  For a 3750 I do not think you will ever reach the threshold. 

Here is the info taken from the Cisco DataSheet

http://www.cisco.com/en/US/prod/collateral/switches/ps5718/ps6406/data_sheet_c78-584733.html

Cisco Catalyst 3750-X and 3560-X Series Specifications

Switch Performance

Table 9 shows Cisco Catalyst 3750-X and 3560-X Series Switches performance specifications.

Table 9. Cisco Catalyst 3750-X and 3560-X Performance Specifications

Performance Numbers for All Switch Models

Switching Fabric

160 Gbps

DRAM

256 MB (512 MB for 3750X-12S and 3750X-24S)

Flash

64 MB (128 MB for 3750X-12S and 3750X-24S)

Total VLANs

1005

VLAN IDs

4K

Total Switched Virtual Interfaces (SVIs)

1K

Jumbo Frame

9216 Byte

Total Routed Ports per 3750-X Stack

468

Forwarding Rate of the Switch Models (with Two 10GbE Uplinks)

Forwarding Rate

3750X-24T

3750X-24P

65.5 mpps

3750X-48T

3750X-48P

3750X-48PF

101.2 mpps

3750X-12S

35.7 mpps

3750X-24S

65.5 mpps

3560X-24T

3560X-24P

65.5 mpps

3560X-48T

3560X-48P

3560X-48PF

101.2 mpps

Scalability Numbers

MAC, routing, security, and QoS scalability numbers depend on the type template used in the switch. Routing template is not supported in the LAN Base feature set. Table 10 shows Cisco Catalyst 3750-X and 3560-X Series Switch scalability numbers.

Table 10. Cisco Catalyst 3750-X and 3560-X Series Switch Scalability Numbers

Access

Default

Routing

VLAN

Unicast MAC addresses

4K

6K

3K

12K

IGMP groups and multicast routes

1K

1K

1K

1K

Unicast routes

6K

8K

11K

0

Directly connected hosts

4K

6K

3K

0

Indirect routes

2K

2K

8K

0

Policy-based routing ACEs

0.5K

0

0.5K

0

QoS classification ACEs

0.5K

0.5K

0.5K

0.5K

Security ACEs

2K

1K

1K

1K

VLANs

1K

1K

1K

1K

New Member

Mac Address Limit

Hello,

We are installing new servers and pc, mobile equipments , i just wanted to confirm what will be the mac address limit for the template we are using now.

Regards,

Silver

Mac Address Limit

Based on these specs I am pretty sure you will not have any issues.

Cisco Employee

Mac Address Limit

Hello Luis Ernesto,

Yes, the data displayed in the show sdm prefer command output describe the current limit on the number of MAC addresses. Different SDM templates allow for different limits in diverse features, so according to the intended usage of your switch, you should choose the appropriate SDM template that best fits your needs.

In addtion, you may want to check the output of the show mac address-table count command - at the bottom of the output, the switch indicates the current limit of MAC address count.

Best regards,

Peter

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