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System Administration

Dear Cisco

I’m doing a bit of network monitoring with SNMP again, and stumbled upon yet another cisco SNMP bug. Back when I wrote the pan-european NMS for KPNQwest, I had to work-around a good number of bugs in the IOS snmp agent, but this time it’s a bug in the MIB file:

Using the CISCO-BGP4-MIB, I can graph the state of my BGP peerings. All fine, when looking at


    CbgpPeerAddrFamilyPrefixEntry ::= SEQUENCE {
        cbgpPeerAcceptedPrefixes        Counter32,
        cbgpPeerDeniedPrefixes          Gauge32,
        cbgpPeerPrefixAdminLimit        Unsigned32,
        cbgpPeerPrefixThreshold         Unsigned32,
        cbgpPeerPrefixClearThreshold    Unsigned32,
        cbgpPeerAdvertisedPrefixes      Gauge32,
        cbgpPeerSuppressedPrefixes      Gauge32,
        cbgpPeerWithdrawnPrefixes       Gauge32
        }

you notice that the Gauge32 vs. Counter32 types are mixed up.

cbgpPeerAcceptedPrefixes is the only Gauge here, whereas cbgpPeerDeniedPrefixes, cbgpPeerAdvertisedPrefixes, cbgpPeerSuppressedPrefixes and cbgpPeerWithdrawnPrefixes are actually Counters, e.g.


    cbgpPeerWithdrawnPrefixes  OBJECT-TYPE
        SYNTAX      Gauge32
        MAX-ACCESS  read-only
        STATUS      current
        DESCRIPTION
                "This counter is incremented when a route prefix,
                 which belongs to an address family, is withdrawn on
                 this connection. It is initialized to zero when the
                 connection is undergone a hard reset."
        ::= { cbgpPeerAddrFamilyPrefixEntry 8 }
Categories
Life

A Sunday Trip

After taking the kids to the election place we drove to Sparbach Park for a nice Sunday’s excursion:

Elena in the Sand Pit

The promised Ice

Am Spielplatz

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Life

Tired kids

This saturday we finally ordered the new bed for the kids (roughly like the third one from here, had lunch at Kika (not advisable: why the f* is the non-smoking area of the restaurant not next to the playground?)) and when driving home the kids fell asleep in the car:

Elena:

Elena

Clemens:

Clemens

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Tracks

Tracks

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Tracks

Tracks

2010/04/16

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Tracks

Tracks

Track 2010/04/12

Categories
Life

Ostern in Rosegg

Karfreitag früh:

Samstag:

Sonntag: