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ISL Trunking on Copper gigabit modules

Does anyone no why ISL trunking is not allowed on 6148-ge-tx or 6548-ge-tx modules? Is there any Cisco documentation stating why? It is available on 6748-ge-tx modules? Hmmmm!

3 REPLIES

Re: ISL Trunking on Copper gigabit modules

Re: ISL Trunking on Copper gigabit modules

Hi Todd,

It is a hardware limitation

The WS-X6548-GE-TX and WS-X6548V-GE-TX do not support the following:

—More than 1 Gbps of traffic per EtherChannel

—WS-F6K-DFC

—ISL trunking

—Jumbo frames

—802.1Q tunneling

—Traffic storm control

The WS-X6148-GE-TX and WS-X6148V-GE-TX do not support the following:

—More than 1 Gbps of traffic per EtherChannel

—WS-F6K-DFC

—ISL trunking

—Jumbo frames

—802.1Q tunneling

—Traffic storm control

http://www.cisc.com/univercd/cc/td/doc/product/lan/cat6000/12_1e/ol_2310.htm

HTH

Ankur

New Member

Re: ISL Trunking on Copper gigabit modules

Thanks, you guys (Ankur & TIS). Release notes truly are our friends)! I have been frustrated by the fact that features such as STORM CONTROL aren't enabled on these modules, or the Etherchannel limitations. Something I realized too late. My questions is more if it's not in the software, why the limitations is in the hardware? Is it heat/cooling, or power related? And why it wasn't re-introduced in the GE-TX world until the 6748? Do you have any thoughts?

Thanks again!

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