Иногда есть имя коробки, но нет адреса loopback, чтобы его узнать «побыстрому» воспользуемся ISIS(Huawei):
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<MPLS-R1>dis isis lsdb is-name MPLS-R10 verbose Database information for ISIS(10) ---------------------------------- Level-2 Link State Database LSPID Seq Num Checksum Holdtime Length ATT/P/OL ------------------------------------------------------------------------------- 0101.2000.0254.00-00 0x0000bc63 0x71ae 945 268 0/0/0 SOURCE MPLS-R10.00 HOST NAME MPLS-R10 NLPID IPV4 AREA ADDR 65.3440 INTF ADDR 10.120.0.254 INTF ADDR 172.220.7.118 INTF ADDR 172.220.7.121 +NBR ID MPLS-R11.00 COST: 10 +NBR ID MPLS-R12.00 COST: 10 +IP-Extended 10.120.0.254 255.255.255.255 COST: 0 +IP-Extended 172.220.7.116 255.255.255.252 COST: 10 +IP-Extended 172.220.7.120 255.255.255.252 COST: 10 Router ID 10.120.0.254 Total LSP(s): 1 *(In TLV)-Leaking Route, *(By LSPID)-Self LSP, +-Self LSP(Extended), ATT-Attached, P-Partition, OL-Overload |
Вот он наш loopback cо стоимостью ноль.
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<MPLS-R1>telnet 10.120.0.254 Trying 10.120.0.254 ... Press CTRL+K to abort Connected to 10.120.0.254 ... Warning: Telnet is not a secure protocol, and it is recommended to use Stelnet. Username: |
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<MPLS-R10>dis cur conf isis # isis 10 is-name MPLS-R10 # |
Juniper:
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R1> show isis database MPLS-R10 detail IS-IS level 1 link-state database: IS-IS level 2 link-state database: MPLS-R10.00-00 Sequence: 0xbc68, Checksum: 0x67b3, Lifetime: 1110 secs IS neighbor: MPLS-R12.00 Metric: 10 IS neighbor: MPLS-R13.00 Metric: 10 IP prefix: 10.120.0.254/32 Metric: 0 Internal Up IP prefix: 172.220.7.116/30 Metric: 10 Internal Up IP prefix: 172.220.7.120/30 Metric: 10 Internal Up |