Bridging on fast links.

[CaptHarrased]

Hi All,

recently did a roll out of the 805 using the config shown. Seems to work ok except when used on a link faster than 128k. Anybody got a clue what the problem may be? I'am wondering whether the increased line speed causes too many re-transmits due to buffer overflows but being realistic i havnt got a clue! Also any helfull comments on the config would be appreciated.

This is a copy of the text file sent to the router rather than a sh run,


enable
config t
hostname Main
enable secret **********
enable password **********

ip subnet-zero
no ip routing

interface Ethernet0
no ip address
no ip route-cache
no ip mroute-cache
bridge-group 1
no shutdown
exit
interface Serial0
no ip address
no ip route-cache
no ip mroute-cache
bridge-group 1
no shutdown
exit


bridge 1 protocol ieee

line con 0
password console
login
exit
line vty 0 4
password telnet
login
exit
exit
copy run start

reload

Cheers!

 

[routerman]

Can you check the line utilisation on the WAN link, (sh int S0), look for tx and rx load (nn/255), work out broadcast's as a % of packets sent and received, and number of dropped packets.

Worth clearing the counters before, then run a test for say 5 min and evaluate these figures.

Also check the router CPU (sh proc) to see if its getting stressed.

One of these details may point to the problem.

 

[CaptHarrased]

routerman,

cheers for that. I take it from your comments that there is nothing obvious wrong with the configs? Its going to be a pain to do this as the routers are part of a UK rollout and the only link with a problem so far is 300 miles away! Bugger!

 

[routerman]

Oh I see, you can still put IP addresses on the routers even though they are not routing IP. They just have to be all on the same IP subnet.

I suppose it depends on your mileage rate

The bridge configuration is fine, but remember you'll forward all those nasty broadcast's etc, so keep the bradcast rate low on your network.

Why are you bridging anyway?

 

[CaptHarrased]

We are bridging because access to the internet is through a third party 1603. However I configure the 805's I cant have access to the 1603's and too be honest Iam not that experienced. I did post here a few times for help but didnt really get any. If your interested in the problem i will mail you a lan diagram and you will see what i mean. You will probably say shit do it this way but like I said when i originally posted this prob I got no help so it was the only way i knew i could get it to work.

 

[CaptHarrased]

Routerman, thread181-27567 if you check out this thread its my original post. Starting to wish I had stuck to basic engineering!