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New Member

802.1q support on 2610 router built-in eth interface

I read in an official Cisco document that support for 802.1q on built-in ethernet interfaces on routers was enabled for recent IOS versions. I installed an recent IOS version and still giving me a hard time. Any ideas?

I attached the document.

8 REPLIES

Re: 802.1q support on 2610 router built-in eth interface

According to that doc, you are right. However, can you include the show version and the kind of problem you are encountering? Capture what you are doing so we can understand what kind of issue you are facing.

Please rate all posts.

New Member

Re: 802.1q support on 2610 router built-in eth interface

the ping is responding ok but the network services are pretty slow, here is the show version output:

CusSanJoseRou1#sh version

Cisco Internetwork Operating System Software

IOS (tm) C2600 Software (C2600-IS-M), Version 12.2(34a), RELEASE SOFTWARE (fc1)

Copyright (c) 1986-2006 by cisco Systems, Inc.

Compiled Tue 02-May-06 11:58 by pwade

Image text-base: 0x8000808C, data-base: 0x8111CF0C

ROM: System Bootstrap, Version 11.3(2)XA4, RELEASE SOFTWARE (fc1)

CusSanJoseRou1 uptime is 1 week, 5 days, 5 hours, 29 minutes

System returned to ROM by reload

System image file is "flash:c2600-is-mz.122-34a.bin"

cisco 2610 (MPC860) processor (revision 0x202) with 45056K/4096K bytes of memory.

Processor board ID JAB0331000W (4147343804)

M860 processor: part number 0, mask 49

Bridging software.

X.25 software, Version 3.0.0.

Basic Rate ISDN software, Version 1.1.

1 Ethernet/IEEE 802.3 interface(s)

2 Serial(sync/async) network interface(s)

1 ISDN Basic Rate interface(s)

32K bytes of non-volatile configuration memory.

16384K bytes of processor board System flash (Read/Write)

Configuration register is 0x2102

Re: 802.1q support on 2610 router built-in eth interface

Check the ports for errors, drops, etc. But this sounds like an oversubscription issue, you know big pipe to smaller pipe >> 100 Mbps to 10 Mbps and the 10 Mbps is shared among multiple vlans.

New Member

Re: 802.1q support on 2610 router built-in eth interface

should i force the switch interface to 10Mbps half-duplex?

Bronze

Re: 802.1q support on 2610 router built-in eth interface

If the switch and the router don't agree on speed and duplex (looking at show int e0/0, etc), it's safe to say that that would probably result in poor performance [GRIN].

I would definitely try hard-setting both ends to 10mbit full and 10mbit half and see what happens.

John

New Member

Re: 802.1q support on 2610 router built-in eth interface

you mean set both sides to 10mbit half-duplex?

Bronze

Re: 802.1q support on 2610 router built-in eth interface

Before I'd change anything, I'd look at the show interface eth0/0 information on the router, and the same on the switch, and see if they agree on duplex and speed, if only to know _before_ the change what was going on, on each end of the link.

Then, I'd try hard-setting both sides to 10mbit full duplex, and try that for a bit. Then, if the problem doesn't go away, try both sides, 10mbit half duplex.

If the problem still persists, I'd swap the ethernet cable out for another one and see if that made any difference.

John

New Member

Re: 802.1q support on 2610 router built-in eth interface

will do and let you know.

thanks.

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