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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 1518 OK
HP…ES 56010
HP…SES 41162
HP…UAS 40990
HP…ES…FE 810
HP…SES…FE 748
HP…UAS…FE 665
Received SDH overhead:
F1 : 0x00; J0 : 0x01; K1 : 0x00; K2 : 0x00
S1 : 0x00; C2 : 0xcf; C2(cmp) : 0xcf; F2 : 0x00
Z3 : 0x00; Z4 : 0x00; S1(cmp) : 0x00
Transmitted SDH overhead:
F1 : 0x00; J0 : 0x01; K1 : 0x00; K2 : 0x00
S1 : 0x00; C2 : 0xcf; F2 : 0x00; Z3 : 0x00
Z4 : 0x00
Received path trace: SH…BB1…T640
53 68 61 6e 67 68 61 69 31 54 53 58 31 2d 52 00 SH…BB1…T640。
Transmitted path trace: BJ…BB1…T640
42 65 69 6a 69 6e 67 32 54 53 58 31 2d 52 45 30 BJ…BB1…T640
HDLC configuration:
Policing bucket: Disabled
Shaping bucket : Disabled
Giant threshold: 4484; Runt threshold: 5
Packet Forwarding Engine configuration:
Destination slot: 0; PLP byte: 1 (0x00)
CoS transmit queue Bandwidth Buffer Priority Limit
% bps % bytes
0 ubr…class 95 9455616000 95 0 low none
3 cbr…class 5 497664000 5 0 low none
Logical interface so…0/0/0。0 (Index 67) (SNMP ifIndex 43) (Generation 21)
Flags: Point…To…Point SNMP…Traps Encapsulation: PPP
Traffic statistics:
Input bytes : 9558469266260
Output bytes : 6882172890450
Input packets: 22932287041
Output packets: 14214042571
Local statistics:
Input bytes : 4779766301429
Output bytes : 3441927128637
Input packets: 11469686849
Output packets: 7113455133
Transit statistics:
Input bytes : 4778702964831 0 bps
Output bytes : 3440245761813 0 bps
Input packets: 11