Ascend Archive
[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

(ASCEND) P75 takes longer and longer to connect to Portmaster



Hi all,

I connect to a Portmaster w/5BRI card with my P75.
My problem is that the P75 takes progressively longer to 
negotiate with the Portmaster.  After a reset, the P75
negotiates the link in just under 2 sec.   After 30 or so
connect the negotiation time is up to 5 sec.

An abridged syslog output is included below, generated by 
manually calling & disconnecting in succession.  Notice the 
negotiation starts out at ~2 sec and by the 28th call is
up to ~5 sec.

Using the P75 WANNEXT 128 debug mode command seems
to shed some light on what is happening.   The 1st call after
a reset and the 30th differ in only 1 way that I can see.  The
first two frames from each of the 1st and 29th call follow:

>XMIT-1:(task: 25BE90, time: 150.92) 25 octets @ 266F14
>  [0000]: FF 03 C0 21 01 01 00 15 01 04 05 F4 11 04 05 F4
>  [0010]: 13 09 03 00 C0 7B 5D FB A9
 0.00s  Sent to port 1:  23 bytes    LCP Request-1 
           Max-Recieve-Unit = 1524
           MP-MRRU = 1524
           MP-Endpoint-Disc = 0x0300c07b5dfba9 

>XMIT-1:(task: 23F850, time: 151.90) 25 octets @ 266F14
>  [0000]: FF 03 C0 21 01 01 00 15 01 04 05 F4 11 04 05 F4
>  [0010]: 13 09 03 00 C0 7B 5D FB A9
 0.98s  Sent to port 1:  23 bytes    LCP Request-1 
           Max-Recieve-Unit = 1524
           MP-MRRU = 1524
           MP-Endpoint-Disc = 0x0300c07b5dfba9 

After this the negotiations proceed normally (the full output is
included below in case I missed something) in about 1 additional
second. Notice that the P75 retransmits its first request.  Why it
does this I don't know, but at this point it seems innocent
enough.   

The first two frames of the 29th call:

>XMIT-29:(task: 205914, time: 1296.35) 25 octets @ 266F14
>  [0000]: FF 03 C0 21 01 01 00 15 01 04 05 F4 11 04 05 F4
>  [0010]: 13 09 03 00 C0 7B 5D FB A9
 0.00s  Sent to port 29:  23 bytes    LCP Request-1
           Max-Recieve-Unit = 1524
           MP-MRRU = 1524
           MP-Endpoint-Disc = 0x0300c07b5dfba9

>XMIT-29:(task: 205914, time: 1300.40) 25 octets @ 266F14
>  [0000]: FF 03 C0 21 01 01 00 15 01 04 05 F4 11 04 05 F4
>  [0010]: 13 09 03 00 C0 7B 5D FB A9
 4.05s  Sent to port 29:  23 bytes    LCP Request-1
           Max-Recieve-Unit = 1524
           MP-MRRU = 1524
           MP-Endpoint-Disc = 0x0300c07b5dfba9

Notice that they appear identical to those from the 1st call
except for the fact that the P75 waits ~4 sec to do the 
retransmission.  The rest of the negotiations proceed at
the same rate as the first call, about additional 1 sec.

My questions:

Why does the P75 retransmit the first frame?

Why does the retransmit take longer on successive calls?

Is there anything I can do to get the P75 to consistantly
connect quickly to this Portmaster?

Thanks in advance,
Bill



============ syslog output =================

18:42:27 slot 0 port 0, Ethernet Up
18:42:55 -0 TCP_ACCEPT  s=206.168.159.225,1624 d=206.168.159.230,23
18:42:55 -0 OPEN/NOPWD  s=206.168.159.225,1624 d=206.168.159.230,23

18:43:00 slot 2 port 1, Outgoing Call, 2253822
18:43:01 slot 2 port 1, line 1, channel 1, Call Connected, MBID 001
18:43:01 call 1 OR slot 2 port 1 64K 2253822
18:43:03 slot 2 port 1, LAN session up, net+
18:49:34 slot 2 port 1, LAN session down, net+
18:49:34 slot 2 port 1, Call Terminated

18:58:07 slot 2 port 1, Outgoing Call, 2253822
18:58:08 slot 2 port 1, line 1, channel 1, Call Connected, MBID 002
18:58:08 call 2 OR slot 2 port 1 64K 2253822
18:58:10 slot 2 port 1, LAN session up, net+
18:58:14 slot 2 port 1, LAN session down, net+
18:58:14 slot 2 port 1, Call Terminated

[  skip to call #28 ]

19:03:29 slot 2 port 1, Outgoing Call, 2253822
19:03:30 slot 2 port 1, line 1, channel 1, Call Connected, MBID 028
19:03:30 call 28 OR slot 2 port 1 64K 2253822
19:03:35 slot 2 port 1, LAN session up, net+
19:03:40 slot 2 port 1, LAN session down, net+
19:03:40 slot 2 port 1, Call Terminated

19:04:01 slot 2 port 1, Outgoing Call, 2253822
19:04:02 slot 2 port 1, line 1, channel 1, Call Connected, MBID 029
19:04:02 call 29 OR slot 2 port 1 64K 2253822
19:04:07 slot 2 port 1, LAN session up, net+
19:04:11 slot 2 port 1, LAN session down, net+
19:04:11 slot 2 port 1, Call Terminated


==============  ppp negotiation ===============
Found Ascend dump format

>XMIT-1:(task: 25BE90, time: 150.92) 25 octets @ 266F14
>  [0000]: FF 03 C0 21 01 01 00 15 01 04 05 F4 11 04 05 F4
>  [0010]: 13 09 03 00 C0 7B 5D FB A9
 0.00s  Sent to port 1:  23 bytes    LCP Request-1 
           Max-Recieve-Unit = 1524
           MP-MRRU = 1524
           MP-Endpoint-Disc = 0x0300c07b5dfba9 

>XMIT-1:(task: 23F850, time: 151.90) 25 octets @ 266F14
>  [0000]: FF 03 C0 21 01 01 00 15 01 04 05 F4 11 04 05 F4
>  [0010]: 13 09 03 00 C0 7B 5D FB A9
 0.98s  Sent to port 1:  23 bytes    LCP Request-1 
           Max-Recieve-Unit = 1524
           MP-MRRU = 1524
           MP-Endpoint-Disc = 0x0300c07b5dfba9 

>RECV-1:(task: 205914, time: 152.43) 33 octets @ 262BE0
>  [0000]: FF 03 C0 21 01 18 00 1D 05 06 A6 06 1E 00 03 04
>  [0010]: C0 23 11 04 06 1C 12 02 13 09 03 00 C0 05 01 2E
>  [0020]: 61
 1.51s  Recvd from port 1:  31 bytes    LCP Request-24 
           Magic-Number = 0xa6061e00
           Authentication-Protocol = PAP
           MP-MRRU = 1564
           MP-Short-Seq-Num-Header
           MP-Endpoint-Disc = 0x0300c005012e61 

>RECV-1:(task: 25BE90, time: 152.43) 25 octets @ 2631FC
>  [0000]: FF 03 C0 21 02 01 00 15 01 04 05 F4 11 04 05 F4
>  [0010]: 13 09 03 00 C0 7B 5D FB A9
 1.51s  Recvd from port 1:  23 bytes    LCP Accept-1 
           Max-Recieve-Unit = 1524
           MP-MRRU = 1524
           MP-Endpoint-Disc = 0x0300c07b5dfba9 

>XMIT-1:(task: 25BE90, time: 152.44) 10 octets @ 266F14
>  [0000]: FF 03 C0 21 04 18 00 06 12 02
 1.52s  Sent to port 1:   8 bytes    LCP Reject-24 
           MP-Short-Seq-Num-Header 

>RECV-1:(task: 205914, time: 152.46) 31 octets @ 263818
>  [0000]: FF 03 C0 21 01 19 00 1B 05 06 A6 06 1E 00 03 04
>  [0010]: C0 23 11 04 06 1C 13 09 03 00 C0 05 01 2E 61
 1.54s  Recvd from port 1:  29 bytes    LCP Request-25 
           Magic-Number = 0xa6061e00
           Authentication-Protocol = PAP
           MP-MRRU = 1564
           MP-Endpoint-Disc = 0x0300c005012e61 

>XMIT-1:(task: 205914, time: 152.46) 31 octets @ 266F14
>  [0000]: FF 03 C0 21 02 19 00 1B 05 06 A6 06 1E 00 03 04
>  [0010]: C0 23 11 04 06 1C 13 09 03 00 C0 05 01 2E 61
 1.54s  Sent to port 1:  29 bytes    LCP Accept-25 
           Magic-Number = 0xa6061e00
           Authentication-Protocol = PAP
           MP-MRRU = 1564
           MP-Endpoint-Disc = 0x0300c005012e61 

[ send username and password ]

>RECV-1:(task: 205914, time: 152.73) 24 octets @ 263E34
>  [0000]: FF 03 C0 23 02 01 00 14 0F 4C 6F 67 69 6E 20 53
>  [0010]: 75 63 63 65 65 64 65 64
 1.81s  Recvd from port 1:  22 bytes    PAP Accept-1 
                    <Login Succeeded> 

>RECV-1:(task: 25BE90, time: 152.73) 20 octets @ 264450
>  [0000]: FF 03 80 21 01 01 00 10 02 06 00 2D 0F 00 03 06
>  [0010]: CE A8 12 F1
 1.81s  Recvd from port 1:  18 bytes   IPCP Request-1 
           IP Comp Proto = Van Jacobson 15 0
           IP Address = 206.168.18.241 

>XMIT-1:(task: 205914, time: 152.74) 44 octets @ 267530
>  [0000]: FF 03 00 3D C0 00 00 00 80 21 01 01 00 22 03 06
>  [0010]: CE A8 9F E6 81 06 00 00 00 00 82 06 00 00 00 00
>  [0020]: 83 06 00 00 00 00 84 06 00 00 00 00
 1.82s  Sent to port 1:  42 bytes m IPCP Request-1 
           IP Address = 206.168.159.230
           Pri DNS = 0.0.0.0
           Pri Netbios NS = 0.0.0.0
           Sec DNS = 0.0.0.0
           Secy Netbios NS = 0.0.0.0 

>XMIT-1:(task: 205914, time: 152.74) 20 octets @ 266F14
>  [0000]: FF 03 00 3D C0 00 00 01 80 21 04 01 00 0A 02 06
>  [0010]: 00 2D 0F 00
 1.82s  Sent to port 1:  18 bytes m IPCP Reject-1 
           IP Comp Proto = Van Jacobson 15 0 

>RECV-1:(task: 205914, time: 152.76) 14 octets @ 264A6C
>  [0000]: FF 03 80 21 04 01 00 0A 84 06 00 00 00 00
 1.84s  Recvd from port 1:  12 bytes   IPCP Reject-1 
           Secy Netbios NS = 0.0.0.0 

>RECV-1:(task: 25BE90, time: 152.77) 18 octets @ 265088
>  [0000]: FF 03 80 21 01 02 00 0E 02 04 00 2D 03 06 CE A8
>  [0010]: 12 F1
 1.85s  Recvd from port 1:  16 bytes   IPCP Request-2 
           IP Comp Proto = Van Jacobson *** no parms
           IP Address = 206.168.18.241 

>XMIT-1:(task: 205914, time: 152.77) 38 octets @ 266F14
 1.85s  Sent to port 1:  38 bytes   unk<0x0>  

>XMIT-1:(task: 205914, time: 152.77) 38 octets @ 266F14
>  [0010]: CE A8 9F E6 81 06 00 00 00 00 82 06 00 00 00 00
>  [0020]: 83 06 00 00 00 00
 1.85s  Sent to port 1:  38 bytes   unk<0xcea8> 9f e6 81 06 00 00 00 00 82 06 00
00 00 00 83 06  

>XMIT-1:(task: 205914, time: 152.77) 18 octets @ 267530
>  [0000]: FF 03 00 3D C0 00 00 03 80 21 04 02 00 08 02 04
>  [0010]: 00 2D
 1.85s  Sent to port 1:  16 bytes m IPCP Reject-2 
           IP Comp Proto = Van Jacobson *** no parms 

>RECV-1:(task: 205914, time: 152.79) 20 octets @ 2656A4
>  [0000]: FF 03 80 21 03 02 00 10 82 06 00 00 00 00 83 06
>  [0010]: CC F8 A8 F0
 1.87s  Recvd from port 1:  18 bytes   IPCP Refuse-2 
           Pri Netbios NS = 0.0.0.0
           Sec DNS = 204.248.168.240 

>RECV-1:(task: 205914, time: 152.79) 14 octets @ 265CC0
>  [0000]: FF 03 80 21 01 03 00 0A 03 06 CE A8 12 F1
 1.87s  Recvd from port 1:  12 bytes   IPCP Request-3 
           IP Address = 206.168.18.241 

>XMIT-1:(task: 205914, time: 152.80) 26 octets @ 267530
>  [0000]: FF 03 00 3D C0 00 00 04 80 21 01 03 00 10 03 06
>  [0010]: CE A8 9F E6 81 06 00 00 00 00
 1.88s  Sent to port 1:  24 bytes m IPCP Request-3 
           IP Address = 206.168.159.230
           Pri DNS = 0.0.0.0 

>XMIT-1:(task: 205914, time: 152.80) 20 octets @ 266F14
>  [0000]: FF 03 00 3D C0 00 00 05 80 21 02 03 00 0A 03 06
>  [0010]: CE A8 12 F1
 1.88s  Sent to port 1:  18 bytes m IPCP Accept-3 
           IP Address = 206.168.18.241 

>RECV-1:(task: 205914, time: 152.82) 14 octets @ 2662DC
>  [0000]: FF 03 80 21 03 03 00 0A 81 06 CE A8 12 01
 1.90s  Recvd from port 1:  12 bytes   IPCP Refuse-3 
           Pri DNS = 206.168.18.1 

>XMIT-1:(task: 205914, time: 152.83) 20 octets @ 266F14
>  [0000]: FF 03 00 3D C0 00 00 06 80 21 01 04 00 0A 03 06
>  [0010]: CE A8 9F E6
 1.91s  Sent to port 1:  18 bytes m IPCP Request-4 
           IP Address = 206.168.159.230 

>RECV-1:(task: 205914, time: 152.84) 14 octets @ 2668F8
>  [0000]: FF 03 80 21 02 04 00 0A 03 06 CE A8 9F E6
 1.92s  Recvd from port 1:  12 bytes   IPCP Accept-4 
           IP Address = 206.168.159.230 
>Skipping: 

++ Ascend Users Mailing List ++
To unsubscribe:	send unsubscribe to ascend-users-request@bungi.com
To get FAQ'd:	<http://www.shore.net/~dreaming/ascend-faq>
or		<ftp://ftp.shore.net/members/dreaming/ascend-faq.txt>