Good point, but if it's the wrong MIB object it's something very similar to
the correct one, because the figures make sense, and are accurate when
compared to show int. Show int also shows discrepancies between the
interfaces.
Rebooting the router, or dropping the lines, just to check this is not an
option (it's not exactly a big problem), but it will be rebooted this
weekend anyway so I'll see if that makes a difference.
Somebody offline suggested that it is CEF defaulting to per-destination
sharing which I think may be the culprit - I haven't looked it up yet but I
think cef is disabled by default in 11.2 but enabled by default in 12.1.
show int stat shows that some (not all) packets are being route-cached on
that interface on the 12.1 router but not the 11.2 router.
Thanks for the suggestions,
JMcL
----- Forwarded by Jenny Mcleod/NSO/CSDA on 24/10/2001 02:12 pm -----
"Erick
B."
cc:
Sent by: Subject: RE: fast switching
[7:23969]
nobody@groups
tudy.com
24/10/2001
01:15
pm
Please
respond
to
"Erick
B."
Jenny,
Are you sure MRTG is polling the right MIBs? I'm not
really familiar with SNMP monitoring of cisco routers
and MIBs involved, but 11.2 and 12.1 are big
difference in versions. Chances are between 11.2 and
12.1 some MIB objects changed.
Clearing the counters, and doing 'show int' on both
interfaces might show they are indeed somewhat
balanced. # of packets output close to same on each
int, etc.
HTH...
--- Rik Guyler wrote:
> Gosh Jenny, I don't have a clue but in the past I've
> had to reboot equipment
> at times to make a few rare changes take full effect
> so maybe you're
> correct. How much pain is involved in rebooting it?
>
> Rik
>
> -----Original Message-----
> From: [EMAIL PROTECTED]
> [mailto:[EMAIL PROTECTED]]
>
> Sent: Tuesday, October 23, 2001 9:07 PM
> To: [EMAIL PROTECTED]
> Subject: fast switching [7:23969]
>
>
> Something odd is happening on my network... (not
> that that's unusual...)
>
> I have a couple of 7507s connected by two E1 links.
> For various reasons,
> the links are set up with fast switching disabled
> (mainly because there are
> single sessions with enough traffic to flood a
> single link). The 7507 on
> one side is running IOS 11.2. Last weekend the 7507
> on the other side was
> upgraded to 12.1(10). According to 'show ip int',
> fast switching and flow
> switching are disabled (on both links at both ends).
> However, MRTG shows
> that the traffic from the 12.1 router to the 11.2
> router is not balanced
> evenly across the two links. Traffic from the 11.2
> router to the 12.1
> router is balanced.
>
> Any guesses as to why this is so? Bug (surely not,
> this is Cisco...:-)? Is
> a reboot or shut/no shut required to change
> switching states (I didn't do
> the upgrade myself and I'm not sure what exact
> configuration sequence was
> used)? Something really obvious I'm missing here?
>
> Ta,
> JMcL
[EMAIL PROTECTED]
__________________________________________________
Do You Yahoo!?
Make a great connection at Yahoo! Personals.
http://personals.yahoo.com
Message Posted at:
http://www.groupstudy.com/form/read.php?f=7&i=23988&t=23969
--------------------------------------------------
FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html
Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
