Starting with ExtremeXOS 22.5, the ipv6-mask-length option provides greater hardware route scale and IP route sharing (ECMP) support for IPv6 “long-mask routes”, meaning IPv6 subnets with mask lengths 65–128 bits. This provides additional scale and resilience for IPv6 host routes whose mask length is 128 bits (see GUID-48285B39-FE95-401B-A625-29A84EE77D36). The default IPv6 mask length is 64.
Summit X670-G2, X770, and ExtremeSwitching X870, X690 series switches.
Increasing scale and providing ECMP for IPv6 mask 65–128 routes decreases IPv4 route scale.
Changes are underlined.
configure forwarding internal-tables [ l2-and-l3 | more [l2 | l3-and-ipmc | routes] {ipv6-mask-length [64 | 128]}]
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