nanog mailing list archives
RE: Clue's for Clue-less
From: "Martin, Christian" <CMartin () mercury balink com>
Date: Wed, 28 Oct 1998 01:21:30 -0500
11.1-20CC also has this feature. -Chris
-----Original Message----- From: Richard Irving [mailto:rirving () onecall net] Sent: Tuesday, October 27, 1998 11:02 PM To: Sharif Torpis; nanog () merit edu Subject: Re: Clue's for Clue-less Sharif Torpis wrote:this must be an 11.2 thing?Unknown... Have you ever met an 11.1.xx technician *not* wearing synthetics to test it ? :)Richard Irving wrote:It is built into IOS.... As you approach the ceiling, itsends out anSNMP log alert. Now, how I select the number is confidential.... Ok. I will give you a hint.... I bring up the original sessions, and confirm integrity... Then I look at the routes, size and count. Then in the dark of the moon, wearing *no* synthetics, facing *magnetic* north... I devine the target number. In other words... It is a judgement call... Downstreams are easier. They must file routes with me,before I routethem. I filter to the prefix. Consider this merely another fall back mechanism to thegeneral IOPSmodel. Sharif Torpis wrote:can u elaborate on the detection mechanism for setting off such alarms? do u look at % change in total routes in coreof internet?e.g. sunday saw a change of 55k -> 60k which is ~10%change ... or dou look at specific blocks that should not bedeaggregated and catchthem if they are deaggregated ... thanks Richard Irving wrote:The only neighbors I lost on this one, dumped something they shouldn't..... If someone de-aggregates a /16, it fires off alarms.... Although these may be validadvertisements,We have opted for the "safe, rather than sorry" perspective. (Besides, the alarms *assure* prompt attention) PS: 11.2.xx and higher have this command...
Current thread:
- Clue's for Clue-less Richard Irving (Oct 26)
- <Possible follow-ups>
- RE: Clue's for Clue-less Martin, Christian (Oct 26)
- Re: Clue's for Clue-less Richard Irving (Oct 26)
- Message not available
- Message not available
- Message not available
- Re: Clue's for Clue-less Richard Irving (Oct 27)
- Re: Clue's for Clue-less Richard Irving (Oct 26)
- Re: Clue's for Clue-less Richard Irving (Oct 26)
- Re: Clue's for Clue-less Jim Jagielski (Oct 27)