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211。94。62。13 211。94。62。1 Up 0 * BJ1…to…SY1…165
Total 6 displayed; Up 5; Down 1
Egress LSP: 5 sessions; 3 detours
To From State Rt Style Labelin Labelout LSPname
211。94。62。1 211。94。62。3 Up 0 1 SE 3 SH1…to…BJ1…165
211。94。62。1 211。94。62。7 Up 0 1 SE 3 WH1…to…BJ1…165
211。94。62。1 211。94。62。13 Up 0 1 SE 3 SY1…to…BJ1…165
211。94。62。1 211。94。62。11 Up 0 1 SE 3 XA1…to…BJ1…165
211。94。62。1 211。94。62。5 Up 0 1 SE 3 GZ1…to…BJ1…165
Total 5 displayed; Up 5; Down 0
Transit LSP: 20 sessions; 6 detours
To From State Rt Style Labelin Labelout LSPname
211。94。62。3 211。94。62。7 Up 0 1 SE 176336 3 WH1…to…SH1…165
211。94。62。3 211。94。62。13 Up 0 1 SE 176304 3 SY1…to…SH1…165
211。94。62。3 211。94。62。11 Up 0 1 SE 176016 3 XA1…to…SH1…165
211。94。62。3 211。94。62。5 Up 0 1 SE 176032 3 GZ1…to…SH1…165
211。94。62。5 211。94。62。3 Up 0 1 SE 176144 3 SH1…to…GZ1…165
211。94。62。5 211。94。62。7 Up 0 1 SE 174352 3 WH1…to…GZ1…165
211。94。62。5 211。94。62。13 Up 0 1 SE 174336 3 SY1…to…GZ1…165
211。94。62。5 211。94。62。11 Up 0 1 SE 175344 3 XA1…to…GZ1…165
211。94。62。7 211。94。62。3 Up 0 1 SE 176256 3 SH1…to…WH1…165
211。94。62。7 211。94。62。13 Up 1 1 SE 167392 3 SY1…to…WH1…165
211。94。62。7 211。94。62。11 Up 1 1 SE 167504 3 XA1…to…WH1…165
211。94。62。7 211。94。62。5 Up 0 1 SE 174272 3 GZ1…to…WH1…165
211。94。62。11 211。94。62。3 Up 0 1 SE 176160 3 SH1…to…XA1…165
211。94。62。11 211。94。62。7 Up 1 1 SE 167456 3 WH1…to…XA1…165
211。94。62。11 211。94。62。13 Up 1 1 SE 131424 3 SY1…to…XA1…165
211。94。62。11 211。94。62。5 Up 0 1 SE 175376 3 GZ1…to…XA1…165
211。94。62。13 211。94。62。3 Up 0 1 SE 176288 3 SH1…to…SY1…165
211。94。62。13 211。94。62。7 Up 1 1 SE 167360 3 WH1…to…SY1…165
211。94。62。13 211。94。62。11 Up 1 1 SE 131360 3 XA1…to…SY1…165
211。94。62。13 211。94。62。5 Up 0 1 SE 174304 3 GZ1…to…SY1…165
Total 20 displayed; Up 20; Down 0
show l2circuit connections ……产看当前2层虚链路关系状态
{master}
noc2004@BJ…BB1…T640》 show l2circuit connections
Layer…2 Circuit Connections:
Legend for connection status (St)
EI …encapsulation invalid NP …interface h/w not present
MM …mtu mismatch Dn …down
EM …encapsulation mismatch VC…Dn …Virtual circuit Down
CM …control…word mismatch Up …operational
VM …vlan id mismatch CF …Call admission control failure
OL …no outgoing label XX …unknown
NC …intf encaps not CCC/TCC
CB …rcvd cell…bundle size bad
Legend for interface status
Up …operational
Dn …down
Neighbor: 211。94。62。3
Interface Type St Time last up # Up trans
ge…0/3/5。600(vc 20011021) rmt OL
Neighbor: 211。94。62。5
Interface Type St Time last up # Up trans
ge…0/3/4。601(vc 601) rmt Up Jul 9 07:17:55 2004 14
Local interface: ge…0/3/4。601; Status: Up; Encapsulation: VLAN
Remote PE: 211。94。62。5; Negotiated control…word: Yes (Null)
Ining label: 100080; Outgoing label: 100032
ge…0/3/4。661(vc 661) rmt Up Jul 9 07:17:55 2004 14
Local interface: ge…0/3/4。661; Status: Up; Encapsulation: VLAN
Remote PE: 211。94。62。5; Negotiated control…word: Yes (Null)
Ining label: 100112; Outgoing label: 100016
Neighbor: 211。94。62。7
Interface Type St Time last up # Up trans
ge…0/3/6。604(vc 20011041) rmt Up Jul 9 07:17:55 2004 2
Local interface: ge…0/3/6。604; Status: Up; Encapsulation: VLAN
Remote PE: 211。94。62。7; Negotiated control…word: Yes (Null)
Ining label: 103504; Outgoing label: 100640
3。4。13 链路状态常用维护命令
故障诊断主要集中在端口的连通性。这又分为物理连通性和逻辑连通性。物理连通性主要依据端口物理状态来判断。确认手段包括调换端口、更换连线、挂表检查传输链路状态等。逻辑连通性是指端口配置的二层封装和三层地址是否与对端吻合。
另外还需要考虑路由指向的正确性。在客户端需要添加相应的缺省路由。在PE路由器上需要设置对客户端路由的反向路由,并确保将该段客户路由通过IGP或BGP对外进行宣告。PE段的路由宣告正确性可以通过检查同一个IGPdomain里的其他路由器有无从本地PE这个方向学习到正确的客户端地址。
常用指令
show interfaces so…x/x/x extensive | no…more ……产看当前POS/GE端口状态
正常状态输出范例:(端口状态正常,IP地址配置无误)
noc2004@BJ…BB1…T640》 show interfaces so…0/0/0 extensive
Physical interface: so…0/0/0; Enabled; Physical link is Up
Interface index: 128; SNMP ifIndex: 26; Generation: 32
Description: Beijing2TSX1…to…Shanghai1TSX1…so…0/0/0
Link…level type: PPP; MTU: 4474; Clocking: Internal; SDH mode; Speed: OC192; Loopback: None; FCS: 16; Payload scrambler: Enabled
Device flags : Present Running
Interface flags: Point…To…Point SNMP…Traps 16384
Link flags : Keepalives
Hold…times : Up 0 ms; Down 0 ms
Keepalive settings: Interval 10 seconds; Up…count 1; Down…count 3
Keepalive statistics:
Input : 370418 (last seen 00:00:03 ago)
Output: 370258 (last sent 00:00:07 ago)
LCP state: Opened
NCP state: inet: Opened; inet6: Not…configured; iso: Opened; mpls: Opened
CHAP state: Not…configured
CoS queues : 8 supported
Last flapped : 2004…07…09 02:14:46 CST (07:56:15 ago)
Statistics last cleared: Never
Traffic statistics:
Input bytes : 4779766301429 1960 bps
Output bytes : 3441927128637 4280 bps
Input packets: 11469686849 2 pps
Output packets: 7113455133 4 pps
Input errors:
Errors: 11724; Drops: 0; Framing errors: 29098070; Runts: 417; Giants: 11307; Bucket drops: 0; Policed discards: 494;
L3 inpletes: 4593653; L2 channel errors: 0; L2 mismatch timeouts: 0; HS link CRC errors: 0; HS link FIFO overflows: 20881
Output errors:
Carrier transitions: 177; Errors: 0; Drops: 0; Aged packets: 0; HS link FIFO underflows: 0
Queue counters: Queued packets Transmitted packets Dropped packets
0 ubr…class 7100943801 7100943801 0
1 nrtvbr…class 0 0 0
2 rtvbr…class 0 0 0
3 cbr…class 12511330 12511330 0
SDH alarms : None
SDH defects : None
SDH PHY: Seconds Count State
PLL Lock 0 0 OK
PHY Light 0 0 OK
SDH regenerator section:
RS…BIP8 55788 983342076
OOF 215 6516 OK
LOS 9 14 OK
LOF 9 14 OK
RS…ES 56003
RS…SES 41149
RS…SEFS 215
SDH multiplex section:
MS…BIP24 14984 997550
MS…FEBE 108 2355485
MS…FERF 772 1561 OK
MS…AIS 41017 1057 OK
BERR…SF 140 4 OK
BERR…SD 0 0 OK
MS…ES 56001
MS…SES 41120
MS…UAS 40936
MS…ES…FE 880
MS…SES…FE 862
MS…UAS…FE 721
SDH path:
HP…BIP8 14927 575123
HP…FEBE 762 43962853
HP…LOP 146 1103 OK
HP…AIS 41022 612 OK
HP…FERF 747 159 OK
HP…UNEQ 2 2 OK
HP…PLM 204 151