nanog mailing list archives
Re: [c-nsp] LDPv6 Census Check
From: Saku Ytti <saku () ytti fi>
Date: Thu, 11 Jun 2020 20:19:04 +0300
On Thu, 11 Jun 2020 at 19:49, Phil Bedard <bedard.phil () gmail com> wrote:
As for normal v6 forwarding, the way most higher speed routers made recently work there is little difference in latency since the encapsulation for the packet is done in a common function at the end of the pipeline and the lookups are often in the same memory space. NPUs are also being built today with enough on-package memory to hold larger routing tables. Whether a packet has to be buffered on-chip vs. off-chip has a much larger impact on latency/PDV than a forwarding lookup.
On-package is not important, on-chip or off-chip is what matters, i.e. do you eat SERDES to connect memory or not. Of course you could always implement a software feature that says these 32b/32 or 128b/128 addresses are blessed and need to live on tiny on-chip memory and from this CIDR we guarantee all are host routes. To achieve similar-to-MPLS performance, with few more bytes per number. The demand is, we need tunneling, then the question is what are the metrics of a good tunneling solution. By answering this honestly, MPLS is better. We could do better surely, but IP is not that. -- ++ytti
Current thread:
- Re: LDPv6 Census Check, (continued)
- Re: LDPv6 Census Check Phil Bedard (Jun 10)
- Re: LDPv6 Census Check Mark Tinka (Jun 10)
- Re: [c-nsp] LDPv6 Census Check Saku Ytti (Jun 10)
- Re: [c-nsp] LDPv6 Census Check Mark Tinka (Jun 11)
- Re: [c-nsp] LDPv6 Census Check Saku Ytti (Jun 11)
- Re: [c-nsp] LDPv6 Census Check Mark Tinka (Jun 11)
- Message not available
- Re: [c-nsp] LDPv6 Census Check Mark Tinka (Jun 11)
- Message not available
- Re: [c-nsp] LDPv6 Census Check Saku Ytti (Jun 11)
- Re: [c-nsp] LDPv6 Census Check Nick Hilliard (Jun 11)
- Re: [c-nsp] LDPv6 Census Check Phil Bedard (Jun 11)
- Re: [c-nsp] LDPv6 Census Check Saku Ytti (Jun 11)
- Re: [c-nsp] LDPv6 Census Check Phil Bedard (Jun 11)
- Re: [c-nsp] LDPv6 Census Check Mark Tinka (Jun 12)
- Re: [c-nsp] LDPv6 Census Check Nick Hilliard (Jun 11)
- Message not available
- Re: [c-nsp] LDPv6 Census Check Saku Ytti (Jun 11)
- Message not available
- Re: [c-nsp] LDPv6 Census Check Saku Ytti (Jun 11)
- Message not available
- Re: [c-nsp] LDPv6 Census Check Saku Ytti (Jun 12)
- Message not available
- Re: [c-nsp] LDPv6 Census Check Saku Ytti (Jun 12)
- Message not available
- Re: [c-nsp] LDPv6 Census Check Saku Ytti (Jun 12)
- Re: [c-nsp] LDPv6 Census Check Andrey Kostin (Jun 12)
- Re: [c-nsp] LDPv6 Census Check Saku Ytti (Jun 12)