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◆ フォワーディングテーブルの見方
JUNOSのフォワーディングテーブルは、ルーティングテーブルをもとに自動的に作成されます。
Cisco IOSでいうCEFテーブルに該当します。このフォワーディングテーブルは、以下のとおり、
show route forwarding-tableコマンドにより確認できます。
フォワーディングテーブルの表示項目である「Route Type」と「Next hop Type」の見方は以下です。
◆ The following list displays some common route types associated with forwarding
entries:
| Route Type |
Typeの説明 |
| dest |
Remote addresses directly reachable through an interface |
| intf |
Installed as a result of configuring an interface |
| perm |
Routes installed by the kernel when the routing table initializes |
| user |
Routes installed by the routing protocol process or as a result of the
configuration |
◆ The following list displays some common next-hop types associated with
forwarding entries:
| Next-hop Type |
Typeの説明 |
| bcst |
Broadcast |
| dscd |
Discard silently without sending an ICMP unreachable message |
| hold |
Next hop is wating to be resolved into a unicast or multicast type |
| locl |
The local address on an interface |
| mcst |
Wire multicast next hop ( limited to the LAN ） |
| mdsc |
Multicast discard |
| recv |
Receive |
| rjct |
Discard and send an ICMP unreachable message |
| ucst |
Unicast |
| ulst |
A list of unicast next hops used when you configure load balancing |
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