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ISIS IPv6 feature

ISIS IPv6 feature

Created: Mar 28, 2020 09:41:41Latest reply: Mar 28, 2020 09:59:45 541 2 0 0 0
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Hi,

The command which enables ISIS IPv6 feature in the ISIS process is ipv6 enable topology, and I found the attached parameter could be ipv6 or standard. I tried them both, without any diffrence found.

Will you guys please help to distinguish them?

Thanks.


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chenhui
Admin Created Mar 28, 2020 09:59:45

Hi @user_3534491,
The parameter depends on the live network.
For the parameter standard, ISIS IPv4 and IPv6 share the same topology DB, if a link which without IPv6 enabled is chosen as the best path, the IPv6 data will be discareded when trying to forward on this link.
While the paramter ipv6 allows the ISIS to run two logical topologys over the same physical network. One for IPv4 and another for IPv6, and the SPF algorythm will be performed separately on the two logical topologys, which prevents the “link blackhole”.
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  • convention：
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user_3445655
user_3445655 Created Mar 28, 2020 09:44:49

Hi,
U might find answer at https://support.huawei.com/hedex/hdx.do?docid=EDOC1100013380&id=ipv6_enable_is-is&lang=en
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  • convention：
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chenhui
chenhui Admin Created Mar 28, 2020 09:59:45

Hi @user_3534491,
The parameter depends on the live network.
For the parameter standard, ISIS IPv4 and IPv6 share the same topology DB, if a link which without IPv6 enabled is chosen as the best path, the IPv6 data will be discareded when trying to forward on this link.
While the paramter ipv6 allows the ISIS to run two logical topologys over the same physical network. One for IPv4 and another for IPv6, and the SPF algorythm will be performed separately on the two logical topologys, which prevents the “link blackhole”.
View more
  • x
  • convention：
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