PE1#sh ip route vrf Customer_B1 Routing Table: Customer_B1 172.16.0.0/24 is subnetted, 1 subnets O 172.16.1.0 [110/11] via 10.2.1.2, 00:00:25, FastEthernet0/0.2 10.0.0.0/24 is subnetted, 1 subnets C 10.2.1.0 is directly connected, FastEthernet0/0.2 PE1# PE1# PE1#ping 10.2.1.2 Type escape sequence to abort. Sending 5, 100-byte ICMP Echos to 10.2.1.2, timeout is 2 seconds: ..... Success rate is 0 percent (0/5) こういう感じで、宛先のルートもネクストホップもアドバタイズされてきてるのに、pingが飛ばないことってあるんですか?
ttp://www.cisco.com/en/US/docs/ios/12_2t/12_2t15/feature/guide/ft_glbp.html#wp1039651 >GLBP Virtual MAC Address Assignment >A GLBP group allows up to four virtual MAC addresses per group. >The AVG is responsible for assigning the virtual MAC addresses to each member of the group. >Other group members request a virtual MAC address after they discover the AVG through hello messages. >Gateways are assigned the next MAC address in sequence. >A virtual forwarder that is assigned a virtual MAC address by the AVG is known as a primary virtual forwarder. >Other members of the GLBP group learn the virtual MAC addresses from hello messages. >A virtual forwarder that has learned the virtual MAC address is referred to as a secondary virtual forwarder. ttp://www.cisco.com/en/US/prod/collateral/iosswrel/ps6537/ps6550/prod_presentation0900aecd801790a3_ps6600_Products_Presentation.html#wp9000236 >Multicast and MAC Addresses >GLBP will use the following multicast destination for packets sent to all GLBP group members: >224.0.0.102, UDP port 3222 >Virtual MAC addresses will be of the form: >0007.b4yy.yyyy >where yy.yyyy equals the lower 24 bits. These bits consist of 6 zero bits, 10 bits that correspond to the GLBP group number, and 8 bits that correspond to the virtual forwarder number. >0007.b400.0102 ⇒ last 24 bits = 0000 0000 0000 0001 0000 0010 = GLBP group 1, forwarder 2 >The protocol allows for up to 1024 GLBP groups and 255 forwarders, but the configuration is currently capped at 4 virtual forwarders per redundancy group. >In practice, hardware dependencies relative to the available MAC address filter settings will determine the maximum number of groups and forwarders that can be configured.
すいません。ちょっと助けてください。 geneのCCNP ROUTEテキストのP661のdebug ip rip の出力結果で *Mar 1 00:48:44.587: 172.16.1.0/24 via 0.0.0.0 in 3 hops このように in 3 hopsの出力結果が全くないのですが。。 他の方、同じようになりますか? *Mar 1 00:48:44.587: RIP: received v2 update from 172.16.4.6 on Ethernet0/2 *Mar 1 00:48:44.587: 172.16.1.0/24 via 0.0.0.0 in 1 hops のように、 in 3 hopsがでてきません。(かならず in 1 hops)になります。 また、インターフェース上で受ける経路情報も全くバラバラです。 何度か試しましたが、常にバラバラになっており、設定を目の皿のようにしてみてますが、間違えてるところがありません。 debugの出力は例と必ずしも同じにはならないのでしょうか?