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路由器基本知识及应用实例(DOC格式)-第17章

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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
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