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> The routing tables don't get bigger They do, because of route fragmentation, not because of address size. > AS numbers are 32 bit anyway and unlikely to get
by zAy0LfpBZLC8mAC 11y ago
> The routing tables don't get bigger
They do, because of route fragmentation, not because of address size.
> AS numbers are 32 bit anyway and unlikely to get bigger
No, AS numbers were 16 bit until well after the introduction of IPv6.
- geocar 11y agoI had a 32 bit AS number almost a decade ago. I'm still waiting for an IPv6 address.
- scurvy 11y agoAnd hardware had problems with 32 bit ASNs even up to a year ago. Inline flow generation was broken on Juniper and Cisco stuff for a while.
- scurvy 11y agoArista just added 4 byte ASN support to BGP in EOS, in the last release in December. Just FYI.
- zAy0LfpBZLC8mAC 11y agoWell, and I've had native (non-tunneled) IPv6 for more than a decade on my DSL at home ... what's your point? Routers have been able to handle IPv6 since quite a bit before the introduction of 32 bit AS numbers, so, if you wanted to be able to speak to 32 bit BGP peers, you had to upgrade to a router that can do IPv6 as an unavoidable side effect.