Hi Rod,
Inktomi can advise you on configuration of the Inktomi Traffic Server.
on the cisco side, i'd recommend that you run the 12.0S train, 12.0(11)S or
later.
this will give you WCCP in DCEF on the 75xx platforms.
one thing to be aware of is that Inktomi do NOT implement the WCCP
return-path feature correctly - and thus you can potentially get a
recursive-reinterception of 'bypass' traffic.
due to this Inktomi bug (inktomi bug-ticket # unknown, but they do know
about it), you either need to:
(a) disable / not use the bypass facility of the Inktomi TS, or
(b) if you want to use the bypass facility, you need to set up
your infrastructure such that the interfaces that have the
Inktomi boxes are on a seperate physical interface to that
of the traffic being intercepted.
eg. something like:
................................
: 75xx :
:..............................:
fasteth0/0/0 fasteth0/0/1 fasteth1/0/0
| | |
| | |
(to upstream ISP) | |
(to Inktomi TS) |
(to rest of network
where traffic comes in)
you would then use a configuration like:
ip cef distributed
ip wccp version 2
ip wccp 0 password <pass>
!
interface fast0/0/1
ip wccp redirect exclude in
!
interface fast1/0/0
ip wccp 0 redirect in
!
(strictly speaking, the "redirect exclude in" on fast0/0/1 isn't
required, but it does help spell out explicitly that you don't
want any traffic intercepted when ingress on that port).
cheers,
lincoln.
At 23:06 10/08/00, Rod Oliver wrote:
>Hi All,
>
>Has anyone had any experience (good or bad) with the combination of WCCP
>version 2 and Inktomi Traffic server. Any comments regarding a rough IOS
>recommendation, best Inktomi version, tweaks necessary on the Ciscos or
>Inktomi, memory/processing power considerations, any performance hit that
>might be seen if WCCPv2 is turned on or anything else that seems relavent
>would be great.
>
>We have a 7500 connecting to an ISP with a 3600 providing router redundancy,
>each is connected to the ISP's switch over FastEthernet. Each connects to a
>5500 switch without RSM, which connects to our open server LAN (no
>firewall). In the this open server LAN we have 3 Inktomi boxes running
>traffic server (I think the version is 3.0.6). We get around 6Mb of traffic
>from the ISP.
>
>--
>Rod Oliver
>
>senior network engineer
>chello broadband nv
>
>boeing avenue 101
>1119 pe schiphol-rijk
>amsterdam
>
>tel +31-20-778-8231
>fax +31-20-778-8301
>cell +31-651-404-835
>icq 39702227
>pgp key 0x2D3F9B3B
--
Lincoln Dale Content Services Business Unit
ltd@cisco.com cisco Systems, Inc. | |
|| ||
+1 (408) 525-1274 bldg G, 170 West Tasman |||| ||||
+61 (3) 9659-4294 << San Jose CA 95134 ..:||||||:..:||||||:..
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