[c-nsp] uBR7246VXR - etherchannel outbound load balancing ?

Fredrik Lönnman fredrik at lonnman.se
Tue Feb 4 16:26:59 EST 2014


The port-channel command support are slim-to-none in the whole uBR series.
I do have a couple of uBR7200VXR with upstream port-channels and have not
seen this problem. Im on SCG though.


On 4 February 2014 21:35, Aaron <aaron1 at gvtc.com> wrote:

>
> No sir, hence why I asked.  I didn't know if there was some strange way to
> make it work on the uBR7246VXR.....
>
> ...Cmts (7246)...
>
> cmts0.blcntx#show etherchannel
>                    ^
> % Invalid input detected at '^' marker.
>
> cmts0.blcntx#show etherchannel ?
> % Unrecognized command
>
> cmts0#conf t
> Enter configuration commands, one per line.  End with CNTL/Z.
> cmts0.blcntx(config)#port-channel ?
> % Unrecognized command
> cmts0.blcntx(config)#^Z
>
>
> ...comparing to me3600....
>
>
> 3600#sh etherchannel ?
>   <1-26>        Channel group number
>   detail        Detail information
>   load-balance  Load-balance/frame-distribution scheme among ports in
> port-channel
>   port          Port information
>   port-channel  Port-channel information
>   protocol      protocol enabled
>   summary       One-line summary per channel-group
>   |             Output modifiers
>   <cr>
>
> 3600#sh etherchannel load-balance
> EtherChannel Load-Balancing Configuration:
>         src-dst-ip
>
> EtherChannel Load-Balancing Addresses Used Per-Protocol:
> Non-IP: Source XOR Destination MAC address
>   IPv4: Source XOR Destination IP address
>   IPv6: Source XOR Destination IP address
> 3600#conf t
> Enter configuration commands, one per line.  End with CNTL/Z.
> 3600(config)#port
> 3600(config)#port-channel ?
>   load-balance  Load Balancing method
>
> 3600(config)#port-channel lo
> 3600(config)#port-channel load-balance ?
>   dst-ip       Dst IP Addr
>   dst-mac      Dst Mac Addr
>   src-dst-ip   Src XOR Dst IP Addr
>   src-dst-mac  Src XOR Dst Mac Addr
>   src-ip       Src IP Addr
>   src-mac      Src Mac Addr
>
> Aaron
>
>
>
>
> -----Original Message-----
> From: Tom Storey [mailto:tom at snnap.net]
> Sent: Tuesday, February 04, 2014 2:12 PM
> To: Aaron
> Cc: cisco-nsp
> Subject: Re: [c-nsp] uBR7246VXR - etherchannel outbound load balancing ?
>
> Do you have anything like the following:
>
> cmts0(config)# port-channel load-balance ?
>
> Thats where it lives on a C4900M anyway, you'd want to think most IOS
> devices would be similar.
>
> On 4 February 2014 17:58, Aaron <aaron1 at gvtc.com> wrote:
> > As you can see I have a channel group with (2) underlying member ints.
> > I have inbound loadbalancing working (which I don't believe has
> > anything to do with this cmts, but rather they 9k sending they traffic
> > to the cmts). but my question is why isn't the cmts load balancing
> > outbound traffic over both of its links?  Would seem to have something
> > to do with the etherchannel load balancing hash mechanism. like
> > src-mac, src-dest-ip, etc, etc. but I don't see any of those load
> > balance tweaks as options in the cmts.. Is it possibly ?  if so, how?
> >
> >
> >
> > G0/2 below shows nothing for output... 30 second output rate 0
> > bits/sec, 0 packets/sec
> >
> >
> >
> > cmts0#sh int port- 1 | in Member
> >
> >         Member 0 : GigabitEthernet0/1 , Full-duplex, 1000Mb/s
> >
> >         Member 1 : GigabitEthernet0/2 , Full-duplex, 1000Mb/s
> >
> >
> >
> > cmts0#sh int g0/1 | in 30 sec
> >
> >   30 second input rate 213916000 bits/sec, 23037 packets/sec
> >
> >   30 second output rate 48344000 bits/sec, 22945 packets/sec
> >
> >
> >
> > cmts0#sh int g0/2 | in 30 sec
> >
> >   30 second input rate 209965000 bits/sec, 21816 packets/sec
> >
> >   30 second output rate 0 bits/sec, 0 packets/sec
> >
> >
> >
> > cmts0#sh ver | in 7246
> >
> > cisco uBR7246VXR (NPE-G2) processor (revision A) with 1966080K/65536K
> > bytes of memory.
> >
> >
> >
> > cmts0#sh ver | in IOS
> >
> > Cisco IOS Software, 7200 Software (UBR7200P-JK9SU2-M), Version
> > 12.2(33)SCD7, RELEASE SOFTWARE (fc2)
> >
> > BOOTLDR: Cisco IOS Software, 7200 Software (UBR7200P-KBOOT-M), Version
> > 12.2(33)SCD7, RELEASE SOFTWARE (fc2)
> >
> >
> >
> > Aaron
> >
> > _______________________________________________
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>
>
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