Re: [Devmon] MDS9000 fibre channel switch

[Peter W. <pet...@gm...>]

Hi Buchan,

Thanks for your response. I do have a column now that shows 1 error for port
18. This is OK. But I want to make sure I understand you correctly before I
shout HOORAY!... From the Cisco-manpage:
connUnitPortStatCountInvalidCRC (1.3.6.1.3.94.4.5.1.40)

Count of frames received with invalid CRC. This count is part of the Link
Error Status Block (LESB). (FC-PH 29.8). Loop ports should not count CRC
errors passing through when monitoring. This is a Fibre Channel-only
statistic.
 Syntax Description

OCTET STRING (SIZE (8)) --->
Does this mean that I have to script all 8 hex-parts? Now, I did only the
following, which corresponds the real value:

connUnitPortStatCountInvalidCRC1B    : SUBSTR:
{connUnitPortStatCountInvalidCRC}   7 1
connUnitPortStatCountInvalidCRC1H    : UNPACK:
{connUnitPortStatCountInvalidCRC1B} H2
IntconnUnitPortStatCountInvalidCRC   : CONVERT:
{connUnitPortStatCountInvalidCRC1H} hex

But when the value increases and goed beyond FF (I would say 256) I would
have do do some MATH to represent the actual error count? There, where you
performed some REGSUB-actions?

Regards,
Peter


2009/10/23 Buchan Milne <bg...@st...>

> >
> SNMPv2-SMI::experimental.94.4.5.1.40.16.0.0.13.236.25.211.23.0.0.0.0.0.0.0.
> >0.18 = Hex-STRING: 00 00 00 00 00 00 00 01 <=== One CRC error!
> >
> > Do you have any hints/suggestions?
>
> I am not sure if there is a more efficient way to do this, but I dealt with
> Hex-
> String values in a test I haven't yet made available (as it will probably
> cause the all-clear-tests issue on version of devmon without another local
> change I am testing on many routers). In the example here, I am converting
> the
> cipsStaticCryptomapPeerB OID, which looks like this:
>
> CISCO-SMI::ciscoExperiment.62.1.2.3.3.1.4.5.99.105.115.99.111.10 =
> Hex-STRING:
> 41 3D 88 04
>
> to a printable string in the cipsStaticCryptomapPeer OID:
>
> $ cat /usr/share/devmon/templates/cisco-2811/vpn/oids
> cipsStaticCryptomapType :       1.3.6.1.4.1.9.10.62.1.2.3.3.1.2 : branch
> cipsStaticCryptomapDescr :      1.3.6.1.4.1.9.10.62.1.2.3.3.1.3 : branch
> cipsStaticCryptomapPeerB :      1.3.6.1.4.1.9.10.62.1.2.3.3.1.4 : branch
> cipsStaticCryptomapNumPeers :   1.3.6.1.4.1.9.10.62.1.2.3.3.1.5 : branch
>
> $ cat /usr/share/devmon/templates/cisco-2811/vpn/transforms
> cipsStaticCryptomapPeerp1B : SUBSTR :{cipsStaticCryptomapPeerB} 0 1
> cipsStaticCryptomapPeerp2B : SUBSTR :{cipsStaticCryptomapPeerB} 1 1
> cipsStaticCryptomapPeerp3B : SUBSTR :{cipsStaticCryptomapPeerB} 2 1
> cipsStaticCryptomapPeerp4B : SUBSTR :{cipsStaticCryptomapPeerB} 3 1
>
> cipsStaticCryptomapPeerp1H : UNPACK : {cipsStaticCryptomapPeerp1B} H2
> cipsStaticCryptomapPeerp2H : UNPACK : {cipsStaticCryptomapPeerp2B} H2
> cipsStaticCryptomapPeerp3H : UNPACK : {cipsStaticCryptomapPeerp3B} H2
> cipsStaticCryptomapPeerp4H : UNPACK : {cipsStaticCryptomapPeerp4B} H2
>
> cipsStaticCryptomapPeerp1 : CONVERT : {cipsStaticCryptomapPeerp1H} hex
> cipsStaticCryptomapPeerp2 : CONVERT : {cipsStaticCryptomapPeerp2H} hex
> cipsStaticCryptomapPeerp3 : CONVERT : {cipsStaticCryptomapPeerp3H} hex
> cipsStaticCryptomapPeerp4 : CONVERT : {cipsStaticCryptomapPeerp4H} hex
>
> cipsStaticCryptomapPeer : REGSUB : {cipsStaticCryptomapPeerB}
> /.*/{cipsStaticCryptomapPeerp1}.{cipsStaticCryptomapPeerp2}.
> {cipsStaticCryptomapPeerp3}.{cipsStaticCryptomapPeerp4}/
>
>
> If you need all 8 hex pairs, you could need 8 SUBSTR, 8 UNPACK, and 8
> CONVERT
> transforms. If you only need the last value, you could get away with just
> one
> of each.
>
> I plan on adding some better operators to automatically convert from common
> SNMP types (or, possibly some automatic conversion of types).
>
>
> Regards,
> Buchan
>