Re: [c-nsp] VSS1440 to ASR1002 - MEC issues

2009-05-02 Thread Kevin Graham
Your original concern was redundancy, so I'd personally go with two L3 interfaces per ASR over a static GEC. You may end up with more traffic over the VSL (as I don't believe there's a ECMP enhancement to prefer same-chassis ports as there is for MEC), but you'll avoid having to depend on UDLD,

Re: [c-nsp] Optical module transmit power

2009-05-02 Thread Will Hargrave
Michael Robson wrote: > The circuit supplier quoted dB values for the links on handover which > should have meant that most of the links would have been within > acceptable values: perhaps the 6500-quoted values aren't very accurate? If you haven't done so, meticulously clean the optics, cables,

Re: [c-nsp] VSS1440 to ASR1002 - MEC issues

2009-05-02 Thread Tassos Chatzithomaoglou
Alasdair McWilliam wrote on 02/05/2009 10:01: Even if ASR only supports GEC, surely my apparent 'one way' traffic symptoms aren't right? I only have one Gigabit Ethernet link in the Port-Channel, between the ASR and the active chassis within the VSS. When the channel-group command is removed

Re: [c-nsp] Channelized DS3 over SM fiber handoff

2009-05-02 Thread Gert Doering
Hi, On Fri, May 01, 2009 at 11:12:35PM -0400, Ryan Werber wrote: > Allstream at 151 front street in Toronto does this. They run a single > strand SMF and they terminate it into a form of a media converter, which > passes off 2x BNC as expected for a DS3. They do this for both clear > channel and

Re: [c-nsp] IPv6 ND over PPP

2009-05-02 Thread Gert Doering
Hi, On Fri, May 01, 2009 at 02:10:30PM -0700, Marlon Duksa wrote: > Hi - 1) does anyone know if Cisco (IOS) is using IPv6CP for neighbor > discovery on a PPP link or they run neighbor discovery on top of PPP link? > 2) same question for HDLC over PPP -> how do they do neighbor discovery > there -

Re: [c-nsp] VSS1440 to ASR1002 - MEC issues

2009-05-02 Thread Alasdair McWilliam
Even if ASR only supports GEC, surely my apparent 'one way' traffic symptoms aren't right? I only have one Gigabit Ethernet link in the Port-Channel, between the ASR and the active chassis within the VSS. When the channel-group command is removed from the ASR's GE interface, and the config