The Cisco implementation is simply broken. You need to complain there. The
more customers complain, the better the chance this finally gets fixed. I
have talked to my contacts inside Cisco a couple of years ago, but they were
not able to initiate a correction. Looks like actual customers need to make
that move.

Rainer

> -----Original Message-----
> From: [email protected] [mailto:rsyslog-
> [email protected]] On Behalf Of Anders Synstad
> Sent: Wednesday, March 30, 2011 10:48 AM
> To: [email protected]
> Subject: [rsyslog] TCP syslogging from switches (Cisco 4948)
> 
> Hello,
> 
> I'm trying to sort out TCP syslogging from these switches, and not
surprisingly
> I'm running into some problems. And I do know most of the answers to my
> own questions here. Just a vague hope that someone have had the same
> problems and also a nice solution (or conclude that there is no easy
solution).
> 
> I have my tcp listeners running on my central loghost server, and this is
all
> working nicely. And I also have some firewalls logging TCP, and they work
> nicely.
> 
> The problem is that the logs from these Cisco switches doesnt end with
ASCII
> 0a (line feed), so rsyslog just piles the logs up and prints them out in a
big
> blob every now and then (guessing when buffer is full).
> 
> Example:
> 
> 2011-03-23T23:57:35.145806+01:00 SOMESWITCH  (851), with alt-sw03a.osl
> GigabitEthernet1/44 (1886).<132>154002: Mar 23 22:52:34.010:
> %CDP-4-NATIVE_VLAN_MISMATCH: Native VLAN mismatch discovered on
> GigabitEthernet1/44 (1886), with alt-sw03a.osl GigabitEthernet1/43
> (851).<132>154003: Mar 23 22:52:34.010: %CDP-4-
> NATIVE_VLAN_MISMATCH:
> Native VLAN mismatch discovered on GigabitEthernet1/43 (851), with alt-
> sw03a.osl GigabitEthernet1/44 (1886).<132>154004: Mar 23
> 22:53:34.009: %CDP-4-NATIVE_VLAN_MISMATCH: Native VLAN mismatch
> discovered on GigabitEthernet1/44 (1886), with alt-sw03a.osl
> GigabitEthernet1/43 (851).<132>154005: Mar 23 22:53:34.009:
> %CDP-4-NATIVE_VLAN_MISMATCH: Native VLAN mismatch discovered on
> GigabitEthernet1/43 (851), with alt-sw03a.osl GigabitEthernet1/44
> (1886).<132>154006: Mar 23 22:54:34.008: %CDP-4-
> NATIVE_VLAN_MISMATCH:
> Native VLAN mismatch discovered on GigabitEthernet1/44 (1886), with alt-
> sw03a.osl GigabitEthernet1/43 (851).<132>154007: Mar 23
> 22:54:34.008: %CDP-4-NATIVE_VLAN_MISMATCH: Native VLAN mismatch
> discovered on GigabitEthernet1/43 (851), with alt-sw03a.osl
> GigabitEthernet1/44 (1886).<132>154008: Mar 23 22:55:34.007:
> %CDP-4-NATIVE_VLAN_MISMATCH: Native VLAN mismatch discovered on
> GigabitEthernet1/44 (1886), with alt-sw03a.osl GigabitEthernet1/43
> (851).<132>154009: Mar 23 22:55:34.007: %CDP-4-
> NATIVE_VLAN_MISMATCH:
> Native VLAN mismatch discovered on GigabitEthernet1/43 (851), with alt-
> sw03a.osl GigabitEthernet1/44 (1886).<132>154010: Mar 23
> 22:56:34.005: %CDP-4-NATIVE_VLAN_MISMATCH: Native VLAN mismatch
> discovered on GigabitEthernet1/44 (1886), with alt-sw03a.osl
> GigabitEthernet1/43 (851).<132>154011: Mar 23 22:56:34.005:
> %CDP-4-NATIVE_VLAN_MISMATCH: Native VLAN mismatch discovered on
> GigabitEthernet1/43 (851), with alt-sw03a.osl GigabitEthernet1/44
> (1886).<132>154012: Mar 23 22:57:34.004: %CDP-4-
> NATIVE_VLAN_MISMATCH:
> Native VLAN mismatch discovered on GigabitEthernet1/44 (1886), with alt-
> sw03a.osl GigabitEthernet1/43 (851).<132>154013: Mar 23
> 22:57:34.004: %CDP-4-NATIVE_VLAN_MISMATCH: Native VLAN mismatch
> discovered on GigabitEthernet
> 
> 
> While the switch logs every minute, the logs gets printed to the logfile
every
> 6th minute in these blobs.
> 
> 
> Has anyone else perhaps observed this? And have a nice solution?
> 
> 
> Regards,
> Anders Synstad
> Basefarm AS
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