Unable to establish trunking to 2916M-XL

[dcna-steve]

I am unable to establish ISL trunking between Cisco CAT5500 (SW: 3.1(1) and any of the Cisco 2916M-XL switches (IOS Release: 11.2(8.10)SA6). I have established trunking between the CAT5500 and multiple other Cisco 2924's and another CAT5505.

I have to turn trunking off on the CAT5500 to regain control of the 2916.

Do you think it is a limitation of the 2916 switch?

[Georg Pauwen · Accepted solution]

Hello,

can you check the amount of memory in your switch ? Do a 'show version':

cisco WS-C2916M-XL (PowerPC403GA) processor (revision 0x11) with

4096K/640K bytes of memory.

Processor board ID 0x06, with hardware revision 0x00

Processor is running Enterprise Edition Software

Cluster member switch capable

16 Ethernet/IEEE 802.3 interface(s)

32K bytes of flash-simulated non-volatile configuration memory.

If you see the same as above:

4096K/640K bytes of memory

that means your 2916 won't do trunking, it appears to be a hardware limitation of the 4MB switches.

HTH,

GP

[dcna-steve]

Thanks, that appears to be the issue.

I have 4096/640 bytes of memory.

Do you know if any issues with me upgrading the memory?

Thanks for the response,

Regards

[amit-singh]

Hi,

2900 XL with 4 MB supports trunking only with these modules.

WS-X2914-XL-V, WS-X2922-XL-V, WS-X2924-XL-V, WS-X2931-XL, or WS-X2932-XL..

If you can get any of these you can set up a trunk with 5K otherwise it will not work.

regards,

-amit singh

[dcna-steve]

Hi, Is it possible for an end-user to upgrade the internal memory or is it a box swap?

Do I have any other options?

Regards,

Steve

[amit-singh · Accepted solution]

Hi,

You cannot upgrade the memory. You need to replace this box.

regards,

-amit singh