[c-nsp] 10G DWDM UP/DOWN

[Good One]

I don't have the ability to see the DWDM stats but we have configured our end with "hold-down up 5000" (ms), this means wavelengths is fluctuating with small amount of time. Yeah, sometimes other wavelengths went down parallel but it's not the case always. The interesting things is, most of the time circuit comes up after 5 second intervals, I understand this is due to "hold-down up 5000" but this also means wavelength is dropping again and again and over again.

 

Thanks

 

BR//

Andrew
 
> From: paul at paulstewart.org
> To: good1 at live.com; cisco-nsp at puck.nether.net
> Subject: RE: [c-nsp] 10G DWDM UP/DOWN
> Date: Wed, 22 Sep 2010 18:14:30 -0400
> 
> Do you have the ability to see the DWDM stats? Is the 10G interface
> configured to drop when wavelength goes down?
> 
> We need to figure out if the DWDM equipment, the actual fiber connection, or
> the router interfaces is the issue here. I'll bank initially on a problem
> with the DWDM based connection - any other wavelengths going down or can you
> tell us?
> 
> Paul
> 
> 
> -----Original Message-----
> From: cisco-nsp-bounces at puck.nether.net
> [mailto:cisco-nsp-bounces at puck.nether.net] On Behalf Of Good One
> Sent: September-22-10 5:43 PM
> To: cisco-nsp at puck.nether.net
> Subject: [c-nsp] 10G DWDM UP/DOWN
> 
> 
> 
> 
> I have a 10G circuit over DWDM which is flapping very frequently
> occasionally. DOWN to UP state takes 5 second most of the time, just
> wondering what could be causing this.
> 
> 
> 
> Sep 22 21:47:46 T12 mib2d[2061]: SNMP_TRAP_LINK_DOWN: ifIndex 117,
> ifAdminStatus up(1), ifOperStatus down(2), ifName xe-5/0/0
> Sep 22 21:47:51 T12 mib2d[2061]: SNMP_TRAP_LINK_UP: ifIndex 117,
> ifAdminStatus up(1), ifOperStatus up(1), ifName xe-5/0/0
> Sep 22 21:49:28 T12 mib2d[2061]: SNMP_TRAP_LINK_DOWN: ifIndex 117,
> ifAdminStatus up(1), ifOperStatus down(2), ifName xe-5/0/0
> Sep 22 21:49:33 T12 mib2d[2061]: SNMP_TRAP_LINK_UP: ifIndex 117,
> ifAdminStatus up(1), ifOperStatus up(1), ifName xe-5/0/0
> 
> 
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