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New Member

Catalyst 4900M - Interface Numbering

Hello there all,

I was wondering if a interface numbering scheme is available for the 4900M.  Configuration includes 1 x 8Port 10G and 1 x 20Port 1G modules.  Would like to understand

  1. How the slots are addressed
  2. Interface Addressing
  3. TwinGig interface addressing

Hope someone can help

Regards

Jay

Everyone's tags (1)
11 REPLIES

Re: Catalyst 4900M - Interface Numbering

Can you post your show ip int brief output?

New Member

Re: Catalyst 4900M - Interface Numbering

No, I have ordered these switches and thought that whilst waiting for delivery I will write the configurations, prepare patching/cabling schedules prepare the diagrams etc....

Purple

Re: Catalyst 4900M - Interface Numbering

New Member

Re: Catalyst 4900M - Interface Numbering

Thanks, have seen that document it talks about 4500 series chassis and modules not 4900M specifically.

New Member

Re: Catalyst 4900M - Interface Numbering

Hi

Hope this will help you abt the product

http://www.cisco.com/en/US/prod/collateral/switches/ps5718/ps6021/ps9310/AAG_Cat_4900M.pdf

regards

krishna kumar

New Member

Re: Catalyst 4900M - Interface Numbering

Krishna, unfortunately not.  That link is simply a product brochure.

New Member

Re: Catalyst 4900M - Interface Numbering

=========================

Cisco Switch Interfaces

For Cisco Catalyst 4948 10 Gigabit Ethernet Switches and Cisco Catalyst 4900M Switches, an interface name is composed of three parts that are formatted as follows:

slot_number /port_number

The variables are as follows:

slot_number: The slot number is the number of the switch slot in which the interface module is installed. In a fixed-port configuration such as for a Cisco Catalyst 4948 10 Gigabit Ethernet Switch, the slot number is always 1. Module slots are numbered 1 to 3, from bottom to top and left to right. The Cisco Catalyst 4900M has one fixed slot, which is slot 1. The top-two half-slots are slots 2 and 3, left to right, respectively.

port_number: The port number is the number of the port on the interface module or the switch.

=====================

Hope this will help.

Maxim.

New Member

Re: Catalyst 4900M - Interface Numbering

So, in this case I assume the 2x10G interfaces would be Ten1/1 and Ten1/2. Thank you.

New Member

Re: Catalyst 4900M - Interface Numbering

Hello Jay,

the onboard 10 Gigabit interfaces are numberd as TenGigabitEthernet 1/1 up to TenGigabitEthernet 1/8. If you put the 20 Port WS-X4920-GB-RJ45 Module in the first module slot beneath the system and power LEDs, the Gigabit ports are numbered from GigabitEthernet 2/1 up to GigabitEthernet 2/20. If you plan to use TwinGig adapters, you have to use one of the TenGigabitEthernet expansion modules (4-Port WS-X4904-10GE or 8-Port WS-X4908-10GE, 2:1 overbooked), because the onboard TenGigabitEthernet interfaces does not support TwinGig adapters.

With kind regards

Stefan

New Member

Catalyst 4900M - Interface Numbering

I know I'm replying to an old post, but for the sake of folks getting here via google:

*May  1 14:35:06.899: %C4K_IOSMODPORTMAN-6-MODULEONLINE: Module 1 (WS-C4900M S/N: x Hw: 1.8) is online

*May  1 14:35:06.899: %C4K_IOSMODPORTMAN-6-MODULEONLINE: Module 2 (WS-X4908-10GE S/N: x Hw: 1.2) is online

*May  1 14:35:06.899: %C4K_IOSMODPORTMAN-6-MODULEONLINE: Module 3 (WS-X4920-GB-RJ45 S/N: x Hw: 1.2) is online

Module 1: Built-in 8x 10G

Module 2: Left Module

Module 3: Right Module

Note the 4908-10GE card has 16 GigE interfaces defined for use with CVR-X2-SFP= (TwinGig), counting up in port number from where the 10G interfaces left off.

Switch#show int status

Port      Name               Status       Vlan       Duplex  Speed Type

Te1/1                        notconnect   1            full    10G No X2

Te1/2                        notconnect   1            full    10G No X2

Te1/3                        notconnect   1            full    10G No X2

Te1/4                        notconnect   1            full    10G No X2

Te1/5                        notconnect   1            full    10G No X2

Te1/6                        notconnect   1            full    10G No X2

Te1/7                        notconnect   1            full    10G No X2

Te1/8                        notconnect   1            full    10G No X2

Te2/1                        notconnect   1            full    10G No X2

Te2/2                        notconnect   1            full    10G No X2

Te2/3                        notconnect   1            full    10G No X2

Te2/4                        notconnect   1            full    10G No X2

Te2/5                        notconnect   1            full    10G No X2

Te2/6                        notconnect   1            full    10G No X2

Te2/7                        notconnect   1            full    10G No X2

Te2/8                        notconnect   1            full    10G No X2

Gi2/9                        inactive     1            full   1000 No Gbic

Gi2/10                       inactive     1            full   1000 No Gbic

Gi2/11                       inactive     1            full   1000 No Gbic

Gi2/12                       inactive     1            full   1000 No Gbic

Gi2/13                       inactive     1            full   1000 No Gbic

Gi2/14                       inactive     1            full   1000 No Gbic

Gi2/15                       inactive     1            full   1000 No Gbic

Gi2/16                       inactive     1            full   1000 No Gbic

Gi2/17                       inactive     1            full   1000 No Gbic

Gi2/18                       inactive     1            full   1000 No Gbic

Gi2/19                       inactive     1            full   1000 No Gbic

Gi2/20                       inactive     1            full   1000 No Gbic

Gi2/21                       inactive     1            full   1000 No Gbic

Gi2/22                       inactive     1            full   1000 No Gbic

Gi2/23                       inactive     1            full   1000 No Gbic

Gi2/24                       inactive     1            full   1000 No Gbic

Gi3/1                        notconnect   1            auto   auto 10/100/1000-TX

Gi3/2                        notconnect   1            auto   auto 10/100/1000-TX

Gi3/3                        notconnect   1            auto   auto 10/100/1000-TX

Gi3/4                        notconnect   1            auto   auto 10/100/1000-TX

Gi3/5                        notconnect   1            auto   auto 10/100/1000-TX

Gi3/6                        notconnect   1            auto   auto 10/100/1000-TX

Gi3/7                        notconnect   1            auto   auto 10/100/1000-TX

Gi3/8                        notconnect   1            auto   auto 10/100/1000-TX

Gi3/9                        notconnect   1            auto   auto 10/100/1000-TX

Gi3/10                       notconnect   1            auto   auto 10/100/1000-TX

Gi3/11                       notconnect   1            auto   auto 10/100/1000-TX

Gi3/12                       notconnect   1            auto   auto 10/100/1000-TX

Gi3/13                       notconnect   1            auto   auto 10/100/1000-TX

Gi3/14                       notconnect   1            auto   auto 10/100/1000-TX

Gi3/15                       notconnect   1            auto   auto 10/100/1000-TX

Gi3/16                       notconnect   1            auto   auto 10/100/1000-TX

Gi3/17                       notconnect   1            auto   auto 10/100/1000-TX

Gi3/18                       notconnect   1            auto   auto 10/100/1000-TX

Gi3/19                       notconnect   1            auto   auto 10/100/1000-TX

Gi3/20                       notconnect   1            auto   auto 10/100/1000-TX

Switch#

New Member

Thanks,Very useful.  A simple

Thanks,

Very useful.  A simple topic but very difficult find out clear information about this.

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