PPP multilink help
Andrey Gordon
andrey.gordon at gmail.com
Mon May 11 17:01:24 UTC 2009
To address the concerns about the overhead (FTP is still transferring that
file:
core.bvzn#sh proc cpu hist
core.bvzn 12:44:07 PM Monday May 11 2009 EST
333344444222222222222222222223333333333222222222233333222222
100
90
80
70
60
50
40
30
20
10
0....5....1....1....2....2....3....3....4....4....5....5....6
0 5 0 5 0 5 0 5 0 5 0
CPU% per second (last 60 seconds)
4 4
333334344353344455444444444554544445455664445551444445454544
100
90
80
70
60
50
40 * *
30 * *
20 * *
10 * ** ** * * ****# ***# * * *
0....5....1....1....2....2....3....3....4....4....5....5....6
0 5 0 5 0 5 0 5 0 5 0
CPU% per minute (last 60 minutes)
* = maximum CPU% # = average CPU%
1
433433344444434344444444443344444433444443444433333333434444344334301332
497289281236443538550242449336950644007664423513486377362431706922208088
100 *
90 *
80 *
70 *
60 *
50 * * *** *** * *** * * *
40 ****** ****** ************* ****** ***** **** ** ************ * * *
30 ******************************************************************** ***
20 *******************************************************************#****
10 *******************************************************************#****
0....5....1....1....2....2....3....3....4....4....5....5....6....6....7..
0 5 0 5 0 5 0 5 0 5 0 5 0
CPU% per hour (last 72 hours)
* = maximum CPU% # = average CPU%
core.bvzn#sh inv
NAME: "2821 chassis", DESCR: "2821 chassis"
<snip>
Serial0/0/0:1 is up, line protocol is up
Hardware is GT96K Serial
Description:
MTU 1500 bytes, BW 1536 Kbit/sec, DLY 20000 usec,
reliability 255/255, txload 149/255, rxload 15/255
Encapsulation PPP, LCP Open, multilink Open
Link is a member of Multilink bundle Multilink1, loopback not set
Keepalive set (10 sec)
Last input 00:00:00, output 00:00:00, output hang never
Last clearing of "show interface" counters 14w0d
Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0
Queueing strategy: weighted fair [suspended, using FIFO]
FIFO output queue 0/40, 0 drops
30 second input rate 93000 bits/sec, 86 packets/sec
30 second output rate 899000 bits/sec, 122 packets/sec
105433994 packets input, 3520749026 bytes, 0 no buffer
Received 0 broadcasts, 0 runts, 0 giants, 0 throttles
0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort
155813204 packets output, 1174780375 bytes, 0 underruns
0 output errors, 0 collisions, 1 interface resets
0 unknown protocol drops
0 output buffer failures, 0 output buffers swapped out
1 carrier transitions
Timeslot(s) Used:1-24, SCC: 0, Transmitter delay is 0 flags
Serial0/0/1:1 is up, line protocol is up
Hardware is GT96K Serial
Description:
MTU 1500 bytes, BW 1536 Kbit/sec, DLY 20000 usec,
reliability 255/255, txload 149/255, rxload 15/255
Encapsulation PPP, LCP Open, multilink Open
Link is a member of Multilink bundle Multilink1, loopback not set
Keepalive set (10 sec)
Last input 00:00:00, output 00:00:00, output hang never
Last clearing of "show interface" counters 14w0d
Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0
Queueing strategy: weighted fair [suspended, using FIFO]
FIFO output queue 0/40, 0 drops
30 second input rate 94000 bits/sec, 86 packets/sec
30 second output rate 898000 bits/sec, 122 packets/sec
105441924 packets input, 3518841511 bytes, 0 no buffer
Received 0 broadcasts, 0 runts, 0 giants, 0 throttles
0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort
155734625 packets output, 1156759105 bytes, 0 underruns
0 output errors, 0 collisions, 1 interface resets
0 unknown protocol drops
0 output buffer failures, 0 output buffers swapped out
1 carrier transitions
Timeslot(s) Used:1-24, SCC: 1, Transmitter delay is 0 flags
Multilink1 is up, line protocol is up
Hardware is multilink group interface
Description: Verizon Business MPLS Circuit
Internet address is x.x.x.150/30
MTU 1500 bytes, BW 3072 Kbit/sec, DLY 100000 usec,
reliability 255/255, txload 148/255, rxload 14/255
Encapsulation PPP, LCP Open, multilink Open
Listen: CDPCP
Open: IPCP, loopback not set
Keepalive set (10 sec)
DTR is pulsed for 2 seconds on reset
Last input 00:00:00, output never, output hang never
Last clearing of "show interface" counters 14w0d
Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 252140
Queueing strategy: Class-based queueing
Output queue: 3/1000/0 (size/max total/drops)
30 second input rate 179000 bits/sec, 172 packets/sec
30 second output rate 1795000 bits/sec, 243 packets/sec
207501114 packets input, 1445648459 bytes, 0 no buffer
Received 0 broadcasts, 0 runts, 0 giants, 0 throttles
42 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort
307484312 packets output, 2277871516 bytes, 0 underruns
0 output errors, 0 collisions, 3 interface resets
0 unknown protocol drops
0 output buffer failures, 0 output buffers swapped out
0 carrier transitions
I also ran 6 flows worth of iperf between a server at the site and my laptop
while the transfer was running (iperf -i 2 - P 6 -t 120 -c 10.1.150.4) in
the same direction
core.bvzn#sh policy-map int mu1
Multilink1
Service-policy output: QWAS
queue stats for all priority classes:
queue limit 64 packets
(queue depth/total drops/no-buffer drops) 0/0/0
(pkts output/bytes output) 0/0
Class-map: VoIP (match-any)
0 packets, 0 bytes
30 second offered rate 0 bps, drop rate 0 bps
Match: dscp ef (46)
0 packets, 0 bytes
30 second rate 0 bps
Priority: 100 kbps, burst bytes 2500, b/w exceed drops: 0
Class-map: interactive (match-any)
31490239 packets, 14882494949 bytes
30 second offered rate 4000 bps, drop rate 0 bps
Match: protocol rdesktop
10981329 packets, 1277510597 bytes
30 second rate 3000 bps
Match: protocol telnet
1104192 packets, 183832229 bytes
30 second rate 0 bps
Match: protocol ssh
9263601 packets, 11659456657 bytes
30 second rate 0 bps
Queueing
queue limit 64 packets
(queue depth/total drops/no-buffer drops) 0/1103/0
(pkts output/bytes output) 31489136/14887505365
bandwidth 500 kbps
Class-map: class-default (match-any)
275000011 packets, 120951145536 bytes
30 second offered rate 1494000 bps, drop rate 0 bps
Match: any
Queueing
queue limit 64 packets
(queue depth/total drops/no-buffer drops/flowdrops) 0/251092/0/251092
(pkts output/bytes output) 276085337/122442704318
Fair-queue: per-flow queue limit 16
core.bvzn#
-----
Andrey Gordon [andrey.gordon at gmail.com]
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