[c-nsp] vwic-2mft-g703 and pa-mc-8te1+ issue

[Vincent De Keyzer]

Hi Yuri,

what does "debug ppp neg" say?

Did you try to place a physical loop at one end of the circuit and see 
whether the loop is seen or not on the remote device?

Vincent


Shefer Yuri wrote:
> Hi!
>
> I have problem with connecting our branch router 3845 with
> VWIC-2MFT-G703 to our core router 7206 with PA-MC-8TE1+. Software is:
> c7200-is-mz.124-12a.bin and c3845-advipservicesk9-mz.124-10.bin. 
> Both sides have trivial config:
>
> controller e1 1/1
> channel-group 0 timeslots 1-31
>
> and
>
> serial 1/1:0
> encapsulation ppp
> ip address 1.1.1.1[2] 255.255.255.252
>
> We didn't have any problems with physical link, because our old
> equipment works fine.
> All diffs on interfaces I have find is that:
>
> Controllers E1 us UP on both sides without alarms.
>
> On 3845:
>
> Serial0/0/0:0 is up, line protocol is down 
>   Hardware is GT96K Serial
>   Internet address is 1.1.1.2/30
>   MTU 1500 bytes, BW 1984 Kbit, DLY 20000 usec, 
>      reliability 255/255, txload 1/255, rxload 1/255
>   Encapsulation PPP, LCP Closed, multilink Closed, loopback not set
>   Keepalive set (10 sec)
>   Last input never, output 12:54:21, output hang never
>   Last clearing of "show interface" counters 13:53:48
>   Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0
>   Queueing strategy: weighted fair
> ...
>   5 minute input rate 0 bits/sec, 0 packets/sec
>   5 minute output rate 0 bits/sec, 0 packets/sec
>      0 packets input, 0 bytes, 0 no buffer
>      Received 0 broadcasts, 0 runts, 0 giants, 0 throttles
>      8 input errors, 4 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort
>   Timeslot(s) Used:1-31, SCC: 0, Transmitter delay is 0 flags
>
> And on 7206 side:
>
> Serial1/1:0 is up, line protocol is down 
>   Hardware is PA-MC-8TE1 Plus
>   Description: << PPP to XXX >>
>   Internet address is 1.1.1.1/30
>   MTU 1500 bytes, BW 1984 Kbit, DLY 20000 usec, 
>      reliability 255/255, txload 4/255, rxload 7/255
>   Encapsulation PPP, LCP Open, multilink Closed
>   Open: IPCP, crc 16, loopback not set
>
> On PA-MC-8TE1 we have crc16 on serial interfaces and cannot disable it
> (only switch to crc32). On 3845 we didn't have that.
> Type on encapsulation doesn't matter: we always have line proto - down.
> May be someone know solution?
>
> Thanks.
>