Bruce Walker wrote:
> I've been struggling with a new PM3 (running 3.8.2) talking to
> Ascend P50's (old and new; I have about six of them). My test P50
> is running 6.0.13.
>
> All I'm trying to do is to have the link between the PM3 and the
> P50 add a channel as load increases and remove it when the load
> drops. Whether that requires MP, MPP, BACP or DBA, I don't care!
>
> So far I can dial up a P50 and successfully negotiate VJ, Stac LZS
> and Multilink. I can load down a single channel with no trouble for
> hours on end (eg: setting maxport=1 in the location profile on
> the PM3).
>
> But if I allow a second B channel to come up (maxport=2), what
> happens next depends on how I set things on the P50, but it always
> screws up.
>
> If I set MP encaps and leave "Sub Pers=10" (the default of 10
> seconds) on the P50, then shortly after dialing a second link, the
> PM3 receives a BAP_LINK_DROP_QUERY_REQUEST almost immediately after
> the 2nd link is up. The PM3 replies with a BAP_LINK_DROP_QUERY_RESPONSE
> and drops the 2nd channel. Then the link "freezes". No TCP traffic
> gets through. There's still one link up as seen by "show session"
> but there's no data. This is usually accompanied with a series of
> these:
>
> Received CCP_RESET_REQUEST on port S3 of 2 bytes containing:
> 0E 02 00 06 00 01
> Packet Info: Code: 0x0E, ID: 0x02, 6 bytes.
> History Number: [0x0001], No History number is present. (RFC1974)
>
> Sending CCP_RESET_ACK to port S3 of 6 bytes containing:
> 0F 02 00 06 00 01
> Packet Info: Code: 0x0F, ID: 0x02, 6 bytes.
> History Number: [0x0001], No History number is present. (RFC1974)
> [...]
>
> The other behaviour is if I set "Sub Pers=120" on the P50. I
> artifically load up my test link with 100% load to keep it busy.
> everything appears to work, for about a minute. Then the link
> freezes for about a minute. No debugging info appears. Then the
> link starts running again for a minute and so on.
>
> I get the same result if I choose MPP encaps instead of MP and
> select "DBA Monitor=None" on the P50.
>
> Any ideas? Does anyone get good results with BACP and Ascends?
>
> Thanks!
>
> --
> -bmw | Double helix in the sky tonight
> | Throw out the hardware
> | Let's do it right -- Steely Dan; Aja
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