nanog mailing list archives
Re: External BGP Controller for L3 Switch BGP routing
From: Saku Ytti <saku () ytti fi>
Date: Mon, 16 Jan 2017 17:07:02 +0200
On 16 January 2017 at 16:53, Tore Anderson <tore () fud no> wrote: Hey,
(Server) --10GE--> (T2 leaf X) --40GE--> (T2 spine) --40GE--> (T2 leaf Y) --10GE--> (IP-transit/"the Internet") --10GE--> (Client) If I understand you correctly you're saying this is a "suspect" topology that cannot achieve 10G transmission rate from server to client (or from client to server for that matter) because of small buffers on my "T2 leaf Y" switch (i.e., the one which has the Internet-facing interface)?
This mostly isn't suspect, depending how utilised it is. If it's verbatim like above, then it's never going to be suspect, as the T2_leaf_Y is going to see large pauses between each frame coming from the 40Gbps side, so it's not going to need to store large burst of 40Gbps traffic, as no one is generating at 40Gbps, so it can cope with very small buffers. -- ++ytti
Current thread:
- Re: External BGP Controller for L3 Switch BGP routing, (continued)
- Re: External BGP Controller for L3 Switch BGP routing Yucong Sun (Jan 15)
- Re: External BGP Controller for L3 Switch BGP routing Josh Reynolds (Jan 16)
- Re: External BGP Controller for L3 Switch BGP routing David Bass (Jan 16)
- Re: External BGP Controller for L3 Switch BGP routing joel jaeggli (Jan 16)
- Re: External BGP Controller for L3 Switch BGP routing Phil Bedard (Jan 17)
- Re: External BGP Controller for L3 Switch BGP routing Saku Ytti (Jan 16)
- Re: External BGP Controller for L3 Switch BGP routing Tore Anderson (Jan 16)
- Re: External BGP Controller for L3 Switch BGP routing James Jun (Jan 16)
- Re: External BGP Controller for L3 Switch BGP routing Saku Ytti (Jan 16)
- Re: External BGP Controller for L3 Switch BGP routing Tore Anderson (Jan 16)
- Re: External BGP Controller for L3 Switch BGP routing Saku Ytti (Jan 16)
- Re: External BGP Controller for L3 Switch BGP routing joel jaeggli (Jan 16)
- Re: External BGP Controller for L3 Switch BGP routing Vincent Bernat (Jan 16)
- Re: External BGP Controller for L3 Switch BGP routing Faisal Imtiaz (Jan 19)