3Com 3C17203 - SuperStack 3 Switch 4400, Implementation Manual

Page: 97 / 153

Webcache Support Example 97
Important
Considerations
This section contains some important considerations when using
Webcache support on the Switch 4400.
■
The Switch 4400 supports the SuperStack 3 Webcache 1000/3000.
■
The Webcache must be connected directly to the Switch 4400 —
there must be no intervening Switches or Hubs.
■
The Switch 4400 can only support one Webcache for a single unit or a
stack.
■
On the Switch 4400 the Webcache must reside on VLAN1.
■
The SuperStack 3 Webcache 1000/3000 can only receive untagged
packets, therefore it must be connected to an untagged port on the
Switch 4400.
■
The Switch 4400 only redirects HTTP requests it recognizes in VLAN1
and sends them untagged to the Webcache.
■
The traffic between any two pairs of IP addresses must always be
redirected through the same Webcache.
■
Only HTTP traffic is eligible for redirection.
■
The port to which the Webcache is connected cannot be a member of
an aggregated link.
■
IP packets with IP Options set will not be redirected.