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Subject: Re: ifIndex
David,
All you have to do is turn on IFindex persistence:
https://www.cisco.com/c/en/us/td/docs/routers/crs/software/crs_r4-2/system_management/command/reference/b_sysman_cr42crs/b_sysman_cr42crs_chapter_01101.html#wp2192797756
We do this on our XRs and it works perfectly.
David,
All you have to do is turn on IFindex persistence:
https://www.cisco.com/c/en/us/td/docs/routers/crs/software/crs_r4-2/system_management/command/reference/b_sysman_cr42crs/b_sysman_cr42crs_chapter_01101.html#wp2192797756
We do this on our XRs and it works perfectly.
-mel via cell
On Oct
Cisco tries very hard to make such useless data occur in XR. If you have a
gigE SFP in an SFP+ port, a new ifindex will appear for the resulting
GigabitEthernetX port, then it remains even if both the config and SFP have
been removed. Automated systems will keep querying it as if it were a dow
Saku,
The issue isn't that ifindexes change during operation. That would truly make
SNMP useless. The issue is that they change across reboots. That's where
features such as Cisco's Interface Index Persistence helps out.
-mel via cell
> On Oct 13, 2018, at 2:59 AM, Saku Ytti wrote:
>
>> On
On Fri, 12 Oct 2018 at 21:40, Chris Adams wrote:
> Is there any good excuse that SNMP client software can't handle a basic
> design of SNMP - indexed tables? ifIndex is far from the only index in
> SNMP, and many of them still change today at various times.
>
> It isn't that hard to fetch the in
Cisco has a feature you can enable called “Interface Index Persistence”:
https://www.cisco.com/c/en/us/support/docs/ip/simple-network-management-protocol-snmp/28420-ifIndex-Persistence.html
This solves the problem, at least with Cisco gear.
-mel beckman
On Oct 12, 2018, at 1:33 PM, Naslund, St
I see this all the time. Especially in module chassis. It seems like
sometimes it has to do with when each board goes to a ready state as the system
boots. We also see renumbering due to virtual interface and board additions.
While you are running they seem to get the next ifindex available
Once upon a time, Randy Bush said:
> do folk have experience with platforms where ifIndexes are not stable
> across reboots etc? how do you deal with it? do some of those
> platforms trap on change?
Is there any good excuse that SNMP client software can't handle a basic
design of SNMP - indexed
--- ra...@psg.com wrote:
From: Randy Bush
do folk have experience with platforms where
ifIndexes are not stable across reboots etc?
how do you deal with it? do some of those
platforms trap on change?
---
I'm surprised everyone doesn't have stable
ifIndex
Most platforms I've worked with have a method to make the indexes
persistent, often by additional command-line options.
-Steve
On Fri, Oct 12, 2018 at 2:08 PM Randy Bush wrote:
> do folk have experience with platforms where ifIndexes are not stable
> across reboots etc? how do you deal with
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