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тАО11-21-2007 07:36 PM
тАО11-21-2007 07:36 PM
Drop Rx Issues on Edge
We are experiencing picture breakup on the IPTV at the same time.
If I look on the Core switches the errors are not being shown on the uplink on that side.
Edge Switches are H10.37 firmware and 2626-PWR and Core switches are 5406zl's.
All are uplinked by primary and a diverse fibre using J4858 SX GBIC's. Maximum fibre route is 350m so the SX GBIC's are within specification.
My only query is that I have all uplink ports set to Auto as HP training textbook. Should I force these to 1000-full on both sides?
Any further suggestions for fault finding would be appreciated.
Thanks.
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тАО11-21-2007 09:39 PM
тАО11-21-2007 09:39 PM
Re: Drop Rx Issues on Edge
Make sure that you are using latest and newest firmware on both swithes H.10.50 and
K.12.51.
If this doen't help, then it is time to clean the fiber patch cables and fiber connectors.
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тАО11-21-2007 11:28 PM
тАО11-21-2007 11:28 PM
Re: Drop Rx Issues on Edge
Drops RX are more an indication of an inbound buffering problem.
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тАО11-21-2007 11:39 PM
тАО11-21-2007 11:39 PM
Re: Drop Rx Issues on Edge
Firmware installed is 3 months old worst and be surprised if this is the issue. I have 54 Edge and 2 Cores to do so I would prefer not to have to do this if required....
The entire IPTV system is multicast based.
IGMP is enabled on the system as well as PIM-SM mode. I have also enabled source-port-filtering on the 2626-PWR switches to the uplinks as well as IGMP Delayed Flush set at 100.
Can you expand on the inbound buffering problem if possible Matt and advise how to fault check this?
Many thanks.
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тАО11-22-2007 07:50 AM
тАО11-22-2007 07:50 AM
Re: Drop Rx Issues on Edge
It's probably unlikely though as most of these cameras will at maximum send at around 10Mbit each. Please correct me if I'm wrong.
Is it only ports 1-24 that are seeing these drops? The uplinks and the core switches are okay?
How stable is the spanning-tree topology? How many topology changes have there been and when was the last? "show span".
If the spanning-tree is blocking the uplink port now and then, then possibly there is a backlog of frames that cannot be transmitted during this time which therefore get dropped.
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тАО11-27-2007 04:58 AM
тАО11-27-2007 04:58 AM
Re: Drop Rx Issues on Edge
I've found broadcast-limit to trigger more often that I had expected. The dropped broadcast would increment dropped packet counters.
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