>IOS не при чем.
>На искажения в канале тоже не похоже, всего 11 input errors.
>
>возможно при большой загрузке keepalive на спутниковом канале теряется -вот интерфейс и
>падает.
> - т.е. спутниковый канал уже, чем принимаемый clock-rate от CDM600 Я тоже так думал, но вот что я увидел:
Jul 20 21:39:38: Hssi2/0(out): StEnq, myseq 186, yourseen 185, DTE up
Jul 20 21:39:38: datagramstart = 0x2DC01ED4, datagramsize = 13
Jul 20 21:39:38: FR encap = 0xFCF10309
Jul 20 21:39:38: 00 75 01 01 01 03 02 BA B9
Jul 20 21:39:38:
Jul 20 21:39:39: Hssi2/0(in): Status, myseq 186, pak size 13
Jul 20 21:39:39: RT IE 1, length 1, type 1
Jul 20 21:39:39: KA IE 3, length 2, yourseq 186, myseq 186
Jul 20 21:39:47: Hssi2/0(out): StEnq, myseq 187, yourseen 186, DTE up
Jul 20 21:39:47: datagramstart = 0x2DC014D4, datagramsize = 13
Jul 20 21:39:47: FR encap = 0xFCF10309
Jul 20 21:39:47: 00 75 01 01 01 03 02 BB BA
Jul 20 21:39:47:
Jul 20 21:39:48: Hssi2/0(in): Status, myseq 187, pak size 13
Jul 20 21:39:48: RT IE 1, length 1, type 1
Jul 20 21:39:48: KA IE 3, length 2, yourseq 187, myseq 187
Jul 20 21:39:52: %LINK-3-UPDOWN: Interface Hssi2/0, changed state to down
Jul 20 21:39:54: %LINK-3-UPDOWN: Interface Hssi2/0, changed state to up
Jul 20 21:39:54: Hssi2/0(out): StEnq, myseq 1, yourseen 0, DTE up
Jul 20 21:39:54: datagramstart = 0x2E70BFD4, datagramsize = 14
Jul 20 21:39:54: FR encap = 0x00010308
Jul 20 21:39:54: 00 75 95 01 01 00 03 02 01 00
Jul 20 21:39:54:
Jul 20 21:39:54: Hssi2/0(out): StEnq, myseq 1, yourseen 0, DTE up
Jul 20 21:39:54: datagramstart = 0x2E70BFD4, datagramsize = 13
Jul 20 21:39:54: FR encap = 0x00010308
Jul 20 21:39:54: 00 75 51 01 00 53 02 01 00
Jul 20 21:39:54:
Jul 20 21:39:54: Hssi2/0(out): StEnq, myseq 1, yourseen 0, DTE up
Jul 20 21:39:54: datagramstart = 0x2E70BFD4, datagramsize = 13
Jul 20 21:39:54: FR encap = 0xFCF10309
Jul 20 21:39:54: 00 75 01 01 00 03 02 01 00
Jul 20 21:39:54:
Jul 20 21:39:55: Hssi2/0(in): Status, myseq 1, pak size 37
Jul 20 21:39:55: RT IE 1, length 1, type 0
Jul 20 21:39:55: KA IE 3, length 2, yourseq 1 , myseq 1
Jul 20 21:39:55: PVC IE 0x7 , length 0x6 , dlci 876, status 0x0 , bw 0
Jul 20 21:39:55: PVC IE 0x7 , length 0x6 , dlci 877, status 0x0 , bw 0
Jul 20 21:39:55: PVC IE 0x7 , length 0x6 , dlci 878, status 0x0 , bw 0
Jul 20 21:40:03: Hssi2/0(out): StEnq, myseq 2, yourseen 1, DTE up
Jul 20 21:40:03: datagramstart = 0x2DC01754, datagramsize = 13
Jul 20 21:40:03: FR encap = 0xFCF10309
Jul 20 21:40:03: 00 75 01 01 00 03 02 02 01
Jul 20 21:40:03:
Jul 20 21:40:12: Hssi2/0(out): StEnq, myseq 3, yourseen 1, DTE up
Jul 20 21:40:12: datagramstart = 0x2E70BE94, datagramsize = 13
Jul 20 21:40:12: FR encap = 0xFCF10309
Jul 20 21:40:12: 00 75 01 01 00 03 02 03 01
Jul 20 21:40:12:
Jul 20 21:40:21: Hssi2/0(out): StEnq, myseq 4, yourseen 1, DTE up
Jul 20 21:40:21: datagramstart = 0x2DC00714, datagramsize = 13
Jul 20 21:40:21: FR encap = 0xFCF10309
Jul 20 21:40:21: 00 75 01 01 00 03 02 04 01
Jul 20 21:40:21:
Jul 20 21:40:26: Hssi2/0(in): Status, myseq 4, pak size 37
Jul 20 21:40:26: RT IE 1, length 1, type 0
Jul 20 21:40:26: KA IE 3, length 2, yourseq 2 , myseq 2
Jul 20 21:40:26: PVC IE 0x7 , length 0x6 , dlci 876, status 0x0 , bw 0
Jul 20 21:40:26: PVC IE 0x7 , length 0x6 , dlci 877, status 0x0 , bw 0
Jul 20 21:40:26: PVC IE 0x7 , length 0x6 , dlci 878, status 0x0 , bw 0
Jul 20 21:40:26: Hssi2/0(in): Status, myseq 0, pak size 37
Jul 20 21:40:26: RT IE 1, length 1, type 0
Jul 20 21:40:26: KA IE 3, length 2, yourseq 3 , myseq 3
Jul 20 21:40:26: PVC IE 0x7 , length 0x6 , dlci 876, status 0x0 , bw 0
Jul 20 21:40:26: PVC IE 0x7 , length 0x6 , dlci 877, status 0x0 , bw 0
Jul 20 21:40:26: PVC IE 0x7 , length 0x6 , dlci 878, status 0x0 , bw 0
Jul 20 21:40:26: Hssi2/0(in): Status, myseq 0, pak size 37
Jul 20 21:40:26: RT IE 1, length 1, type 0
Jul 20 21:40:26: KA IE 3, length 2, yourseq 4 , myseq 4
Jul 20 21:40:26: PVC IE 0x7 , length 0x6 , dlci 876, status 0x0 , bw 0
Jul 20 21:40:26: PVC IE 0x7 , length 0x6 , dlci 877, status 0x0 , bw 0
Jul 20 21:40:26: PVC IE 0x7 , length 0x6 , dlci 878, status 0x0 , bw 0
Jul 20 21:40:30: Hssi2/0(out): StEnq, myseq 1, yourseen 1, DTE down
Jul 20 21:40:30: datagramstart = 0x2E70C394, datagramsize = 13
Jul 20 21:40:30: FR encap = 0xFCF10309
Jul 20 21:40:30: 00 75 01 01 00 03 02 01 01
Jul 20 21:40:30:
Jul 20 21:40:31: %LINEPROTO-5-UPDOWN: Line protocol on Interface Hssi2/0, changed state to down
Jul 20 21:40:35: Hssi2/0(in): Status, myseq 1, pak size 37
Jul 20 21:40:35: RT IE 1, length 1, type 0
Jul 20 21:40:35: KA IE 3, length 2, yourseq 5 , myseq 1
Jul 20 21:40:35: PVC IE 0x7 , length 0x6 , dlci 876, status 0x0 , bw 0
Jul 20 21:40:35: PVC IE 0x7 , length 0x6 , dlci 877, status 0x0 , bw 0
Jul 20 21:40:35: PVC IE 0x7 , length 0x6 , dlci 878, status 0x0 , bw 0
Jul 20 21:40:39: Hssi2/0(out): StEnq, myseq 2, yourseen 5, DTE down
Jul 20 21:40:39: datagramstart = 0x2E70BAD4, datagramsize = 13
Jul 20 21:40:39: FR encap = 0xFCF10309
Jul 20 21:40:39: 00 75 01 01 01 03 02 02 05
Jul 20 21:40:39:
Jul 20 21:40:42: Hssi2/0(in): Status, myseq 2, pak size 13
Jul 20 21:40:42: RT IE 1, length 1, type 1
Jul 20 21:40:42: KA IE 3, length 2, yourseq 6 , myseq 2
Jul 20 21:40:48: Hssi2/0(out): StEnq, myseq 3, yourseen 6, DTE up
Jul 20 21:40:48: datagramstart = 0x2E70D3D4, datagramsize = 13
Jul 20 21:40:48: FR encap = 0xFCF10309
Jul 20 21:40:48: 00 75 01 01 01 03 02 03 06
Jul 20 21:40:48:
Jul 20 21:40:49: Hssi2/0(in): Status, myseq 3, pak size 37
Jul 20 21:40:49: RT IE 1, length 1, type 0
Jul 20 21:40:49: KA IE 3, length 2, yourseq 7 , myseq 3
Jul 20 21:40:49: PVC IE 0x7 , length 0x6 , dlci 876, status 0x0 , bw 0
Jul 20 21:40:49: PVC IE 0x7 , length 0x6 , dlci 877, status 0x0 , bw 0
Jul 20 21:40:49: PVC IE 0x7 , length 0x6 , dlci 878, status 0x0 , bw 0
Jul 20 21:40:49: %LINEPROTO-5-UPDOWN: Line protocol on Interface Hssi2/0, changed state to up
Jul 20 21:40:57: Hssi2/0(out): StEnq, myseq 4, yourseen 7, DTE up
Jul 20 21:40:57: datagramstart = 0x2DC014D4, datagramsize = 13
Jul 20 21:40:57: FR encap = 0xFCF10309
Jul 20 21:40:57: 00 75 01 01 00 03 02 04 07
Jul 20 21:40:57:
Jul 20 21:40:58: Hssi2/0(in): Status, myseq 4, pak size 37
Jul 20 21:40:58: RT IE 1, length 1, type 0
Видно что пакеты от keepalive отправляются и получаются и вдруг... падает "физика", а потом из за того что пакеты от keepalive не приходят упал и линейный интерфейс. К тому-же канал загружен в эти периуды на 75-80%.
Я специально днём нагружал канал - таких проблем не наблюдал.
sh interfaces hssi 2/0
Hssi2/0 is up, line protocol is up
Hardware is M1T-HSSI-B
MTU 1500 bytes, BW 20000 Kbit, DLY 200 usec,
reliability 255/255, txload 48/255, rxload 237/255
Encapsulation FRAME-RELAY, crc 16, loopback not set
Keepalive set (10 sec)
Restart-Delay is 0 secs
LMI enq sent 150, LMI stat recvd 150, LMI upd recvd 0, DTE LMI up
LMI enq recvd 0, LMI stat sent 0, LMI upd sent 0
LMI DLCI 1023 LMI type is CISCO frame relay DTE
FR SVC disabled, LAPF state down
Broadcast queue 0/256, broadcasts sent/dropped 0/0, interface broadcasts 0
Last input 00:00:07, output 00:00:00, output hang never
Last clearing of "show interface" counters 00:25:05
Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0
Queueing strategy: DLCI priority
Output queue (queue priority: size/max/drops):
high: 0/400/0, medium: 0/400/0, normal: 0/1/0, low: 0/400/0
30 second input rate 18605000 bits/sec, 14259 packets/sec
30 second output rate 3815000 bits/sec, 11778 packets/sec
21365273 packets input, 3226087135 bytes, 0 no buffer
Received 0 broadcasts, 0 runts, 0 giants, 0 throttles
0 parity
548 input errors, 548 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort
17624727 packets output, 732538573 bytes, 0 underruns
0 output errors, 0 applique, 0 interface resets
0 output buffer failures, 0 output buffers swapped out
0 carrier transitions LC=down CA=up TM=down LB=down TA=up LA=down