nanog mailing list archives
Re: Cisco 7600 PFC3B(XL) and IPv6 packets with fragmentation header
From: Christopher Morrow <morrowc.lists () gmail com>
Date: Fri, 30 Sep 2011 12:30:16 -0400
On Fri, Sep 30, 2011 at 11:24 AM, Nick Hilliard <nick () foobar org> wrote:
On 30/09/2011 15:45, Christopher Morrow wrote:traceroute could certainly be handled in the fastpath.which traceroute? icmp? udp? tcp? Traceroute is not a single protocol.
traceroute is really an example of 'packet expired, send unreachable'... that, today is basically: o grab 64bytes of header (or something similar) o shove that in a payload o use the src as the dst o stick my src on o set icmp o crc and fire there's not really any need to do this in the slow path, is there? -chris
Current thread:
- Re: Cisco 7600 PFC3B(XL) and IPv6 packets with fragmentation header, (continued)
- Re: Cisco 7600 PFC3B(XL) and IPv6 packets with fragmentation header Mikael Abrahamsson (Sep 29)
- Re: Cisco 7600 PFC3B(XL) and IPv6 packets with fragmentation header Saku Ytti (Sep 30)
- Re: Cisco 7600 PFC3B(XL) and IPv6 packets with fragmentation header Christopher Morrow (Sep 30)
- Re: Cisco 7600 PFC3B(XL) and IPv6 packets with fragmentation header Saku Ytti (Sep 30)
- Re: Cisco 7600 PFC3B(XL) and IPv6 packets with fragmentation header Christopher Morrow (Sep 30)
- Re: Cisco 7600 PFC3B(XL) and IPv6 packets with fragmentation header Saku Ytti (Sep 30)
- Re: Cisco 7600 PFC3B(XL) and IPv6 packets with fragmentation header Nick Hilliard (Sep 30)
- Re: Cisco 7600 PFC3B(XL) and IPv6 packets with fragmentation header Mohacsi Janos (Sep 30)
- Re: Cisco 7600 PFC3B(XL) and IPv6 packets with fragmentation header Nick Hilliard (Sep 30)
- Re: Cisco 7600 PFC3B(XL) and IPv6 packets with fragmentation header Christopher Morrow (Sep 30)
- Re: Cisco 7600 PFC3B(XL) and IPv6 packets with fragmentation header Christopher Morrow (Sep 30)
- Re: Cisco 7600 PFC3B(XL) and IPv6 packets with fragmentation header Nick Hilliard (Sep 30)
- Re: Cisco 7600 PFC3B(XL) and IPv6 packets with fragmentation header Christopher Morrow (Sep 30)
- Re: Cisco 7600 PFC3B(XL) and IPv6 packets with fragmentation header Dobbins, Roland (Sep 30)
- Re: Cisco 7600 PFC3B(XL) and IPv6 packets with fragmentation header Christopher Morrow (Sep 30)
- Re: Cisco 7600 PFC3B(XL) and IPv6 packets with fragmentation header Christopher Morrow (Sep 30)
- Re: Cisco 7600 PFC3B(XL) and IPv6 packets with fragmentation header Dobbins, Roland (Sep 30)
- RE: Cisco 7600 PFC3B(XL) and IPv6 packets with fragmentation header Vinny_Abello (Sep 30)