Re: show ip eigrp all-linksの「all」とは？

RFのFa0/0をshutすることで、192.168.5.0/24に到達可能な経路がRB1経由のみにさせ、
その後、no shutで回復させるところをdebugしてみたところ、以下のようになりました。

RAはRB1から192.168.5.0/24宛の経路は到達不能(4294967295)と言われたために、
show ip eigrp topology all-link でも表示されなかったのではないでしょうか。

なお、RB1の192.168.5.0/24宛のnexthopはRAになってましたので、
192.168.5.0/24宛を、RB1はRAに渡し、RAはRB1経由で通信すると言うのも
おかしな話なので、到達不能と判定されたのだと思います。

※以下はRE fa0/0は/25で設定し、speed10はRB2-RF間、全ルータauto-summaryです。
---------------------------
■RFのFa0/0をshut
RA(config-router)#
*Mar 1 02:34:07.363: DUAL: rcvquery: 192.168.5.0/24 via 192.168.2.2 metric 4294967295/4294967295, RD is 33280
*Mar 1 02:34:07.367: DUAL: Find FS for dest 192.168.5.0/24. FD is 33280, RD is 33280
*Mar 1 02:34:07.371: DUAL: 192.168.2.2 metric 4294967295/4294967295
*Mar 1 02:34:07.375: DUAL: 192.168.3.2 metric 11028992/10516992 not found Dmin is 11028992
*Mar 1 02:34:07.375: DUAL: Peer total 3 stub 0 template 3
*Mar 1 02:34:07.379: DUAL: Dest 192.168.5.0/24 entering active state.
*Mar 1 02:34:07.383: DUAL: Set reply-status table. Count is 3.
*Mar 1 02:34:07.383: DUAL: Not doing split horizon
*Mar 1 02:34:07.387: DUAL: Going from state 1 to state 3
*Mar 1 02:34:07.487: DUAL: dest(192.168.5.0/24) active
*Mar 1 02:34:07.491: DUAL: rcvquery: 192.168.5.0/24 via 192.168.1.2 metric 4294967295/4294967295, RD is 4294967295
*Mar 1 02:34:07.495: DUAL: send REPLY(r1/n1) about 192.168.5.0/24 to 192.168.1.2
*Mar 1 02:34:07.503: DUAL: rcvreply: 192.168.5.0/24 via 192.168.2.2 metric 4294967295/4294967295
*Mar 1 02:34:07.507: DUAL: reply count is 3
*Mar 1 02:34:07.507: DUAL: Clearing handle 1, count now 2
*Mar 1 02:34:07.515: DUAL: rcvquery: 192.168.5.0/24 via 192.168.3.2 metric 4294967295/4294967295, RD is 4294967295
*Mar 1 02:34:07.519: DUAL: send REPLY(r1/n1) about 192.168.5.0/24 to 192.168.3.2
*Mar 1 02:34:07.635: DUAL: rcvreply: 192.168.5.0/24 via 192.168.1.2 metric 289280/286720
*Mar 1 02:34:07.639: DUAL: reply count is 2
*Mar 1 02:34:07.639: DUAL: Clearing handle 0, count now 1
*Mar 1 02:34:07.707: DUAL: rcvreply: 192.168.5.0/24 via 192.168.3.2 metric 4294967295/4294967295
*Mar 1 02:34:07.707: DUAL: reply count is 1
*Mar 1 02:34:07.711: DUAL: Clearing handle 2, count now 0
*Mar 1 02:34:07.711: DUAL: Freeing reply status table
*Mar 1 02:34:07.715: DUAL: Find FS for dest 192.168.5.0/24. FD is 4294967295, RD is 4294967295 found
*Mar 1 02:34:07.719: DUAL: send REPLY(r1/n1) about 192.168.5.0/24 to 192.168.2.2
*Mar 1 02:34:07.723: DUAL: Removing dest 192.168.5.0/24, nexthop 192.168.3.2
*Mar 1 02:34:07.727: DUAL: RT installed 192.168.5.0/24 via 192.168.1.2
*Mar 1 02:34:07.731: DUAL: Send update about 192.168.5.0/24. Reason: metric chg
*Mar 1 02:34:07.735: DUAL: Send update about 192.168.5.0/24. Reason: new if
*Mar 1 02:34:07.735: DUAL: Going from state 3 to state 1
*Mar 1 02:34:07.823: DUAL: Removing dest 192.168.5.0/24, nexthop 192.168.2.2
RA(config-router)#

■RFのFa0/0をno shut
RA(config-router)#
*Mar 1 02:39:27.931: DUAL: dest(192.168.5.0/24) not active
*Mar 1 02:39:27.935: DUAL: rcvupdate: 192.168.5.0/24 via 192.168.2.2 metric 33280/30720
*Mar 1 02:39:27.939: DUAL: Find FS for dest 192.168.5.0/24. FD is 289280, RD is 289280
*Mar 1 02:39:27.939: DUAL: 192.168.1.2 metric 289280/286720
*Mar 1 02:39:27.943: DUAL: 192.168.2.2 metric 33280/30720 found Dmin is 33280
*Mar 1 02:39:27.947: DUAL: RT installed 192.168.5.0/24 via 192.168.1.2
*Mar 1 02:39:27.951: DUAL: RT installed 192.168.5.0/24 via 192.168.2.2
*Mar 1 02:39:27.955: DUAL: Send update about 192.168.5.0/24. Reason: metric chg
*Mar 1 02:39:27.959: DUAL: Send update about 192.168.5.0/24. Reason: new if
*Mar 1 02:39:27.987: DUAL: dest(192.168.5.0/24) not active
*Mar 1 02:39:27.987: DUAL: rcvupdate: 192.168.5.0/24 via 192.168.3.2 metric 11028992/10516992
*Mar 1 02:39:27.991: DUAL: Find FS for dest 192.168.5.0/24. FD is 33280, RD is 33280
*Mar 1 02:39:27.995: DUAL: 192.168.2.2 metric 33280/30720
*Mar 1 02:39:27.995: DUAL: 192.168.3.2 metric 11028992/10516992
*Mar 1 02:39:27.999: DUAL: 192.168.1.2 metric 289280/286720 found Dmin is 33280
*Mar 1 02:39:28.003: DUAL: RT installed 192.168.5.0/24 via 192.168.2.2
*Mar 1 02:39:28.279: DUAL: rcvupdate: 192.168.5.0/24 via 192.168.1.2 metric 4294967295/4294967295★
*Mar 1 02:39:28.283: DUAL: Find FS for dest 192.168.5.0/24. FD is 33280, RD is 33280
*Mar 1 02:39:28.287: DUAL: 192.168.2.2 metric 33280/30720
*Mar 1 02:39:28.291: DUAL: 192.168.3.2 metric 11028992/10516992
*Mar 1 02:39:28.291: DUAL: 192.168.1.2 metric 4294967295/4294967295 found Dmin is 33280
*Mar 1 02:39:28.295: DUAL: Removing dest 192.168.5.0/24, nexthop 192.168.1.2★
*Mar 1 02:39:28.299: DUAL: RT installed 192.168.5.0/24 via 192.168.2.2
RA(config-router)#