How to Enable Spanning-tree portfast on Cisco Cat2948G (R5000)

Unanswered Question
Oct 4th, 2009

Hi all.

please help!

i have a problem. i don't known command to enable Spanning tree portfast on Switch Cat2948G. please see information about IOS verison and Platform of device?

I have this problem too.
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Giuseppe Larosa Mon, 10/05/2009 - 00:12

Hello Doan,

being IOS based

int type x/y

spanning-tree portfast


int f0/5

spanning-tree portfast

don't use it on ports towards other switches

Hope to help


chidd Mon, 10/05/2009 - 05:33

the Spanning-tree portfast command not exist on this IOS.

this is problem that i need all of you help.

this devices is 2948L3 and very old.

with you want add some port in to vlan, you must using "bridge-group " command.

glen.grant Mon, 10/05/2009 - 04:14

Use "set port host" slot/port - port , such as 2/1-48 . The 2948G is a catos box.

Giuseppe Larosa Mon, 10/05/2009 - 04:45

Hello Glen,

in the attached sh ver:

System image file is "bootflash:cat2948g-in-mz.120-25.W5.27.bin"

this is an IOS box, isn't it?

Hope to help


glen.grant Mon, 10/05/2009 - 04:54

In one of cisco's smarter marketing moves they made a 2948G-L3 and 2948G layer 2 box which was based on the L2 cat 4000 box so you have basically have one or the other , the user would have to tell us what exactly he has. The L2 box actually runs Cat 4000 code. I went by the notion it said 2948G and not 2948G-L3 .

Giuseppe Larosa Mon, 10/05/2009 - 05:08

Hello Glen,


the scenario is the same as a C6500 in Hybrid mode there are actually two "devices" in the same box.

Best Regards



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