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2510G-48 - Telnet/SNMP/IP inaccessible

Mark Castle
Advisor

2510G-48 - Telnet/SNMP/IP inaccessible

Hi all,

One of our 2510G-48s has become inaccessible through http, telnet, snmp and pings are on and off... eg

Reply from 10.10.20.28: bytes=32 time=600ms TTL=64
Request timed out.
Reply from 10.10.20.28: bytes=32 time=356ms TTL=64
Reply from 10.10.20.28: bytes=32 time=430ms TTL=64
Reply from 10.10.20.28: bytes=32 time=525ms TTL=64
Reply from 10.10.20.28: bytes=32 time=624ms TTL=64
Request timed out.
Request timed out.
Request timed out.
Request timed out.
Request timed out.
Request timed out.
Reply from 10.10.20.28: bytes=32 time=375ms TTL=64
Request timed out.
Reply from 10.10.20.28: bytes=32 time=477ms TTL=64

Occasionally it will start having very low pings again and look like it's back to normal (can telnet in etc) but then after a min or so it's gone again.

The Switch is forwarding L2 traffic just fine, so we've resisted rebooting it for now. We've had this on a number of switches (different HP models) in the past and mostly after a day or so they just spring to life again and are fine however this one has been like it for a couple of weeks. Console access is fine (although rather inconvenient as this switch is miles away in a datacentre).

We're running firmware: Y.11.12 on this one and I can't see any fixes for this sort of thing in later releases.

Has anyone experienced similar?

The switch is running MSTP with 2 x uplinks to different switches (one blocking), but apart from that we're not doing anything fancy with the switch... just a few vlans.

Have tried adding IPs to other VLANS and also removing and re-adding the IP to the "management" vlan (it's not really in management vlan mode it's just that we call it the management vlan). No luck though.

I'd really like to avoid having to reboot this switch all the time as it's got quite a few customer servers attached to it.

Would I be best leaving it in this state and getting HP to login and have a look?

Cheers in advance
2 REPLIES
Mark Castle
Advisor

Re: 2510G-48 - Telnet/SNMP/IP inaccessible

Just to add... traffic on this switch is rather light (<20Mbps) and CPU seems to hover at 19-22% all of the time.

Up Time : 28 days Memory - Total : 23,587,104
Free : 16,324,224

CPU Util (%) :20
Buffers Free : 2774
Lowest : 1384
Missed : 0

There don't seem to be any relevant errors recorded in the logs... certainly nothing when it switches between "responsive" and "unresponsive"
cenk sasmaztin
Honored Contributor

Re: 2510G-48 - Telnet/SNMP/IP inaccessible

hi Mark
please send me sh tech print
cenk