Transparent Cache Deployment 39Important Considerations for the Switch 4400This section contains some important considerations when deploying theWebcache with the Switch 4400 (3C17203, 3C17204). The Switch 4400 supports the SuperStack 3 Webcache 1000/3000. The Switch 4400 unit must have software version 2.02 or laterinstalled. 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 astack. On the Switch 4400 the Webcache must reside on VLAN1. The SuperStack 3 Webcache 1000/3000 can only receive untaggedpackets, therefore it must be connected to an untagged port on theSwitch 4400. The Switch 4400 only redirects HTTP requests it recognizes in VLAN1and sends them untagged to the Webcache. The traffic between any two pairs of IP addresses must always beredirected through the same Webcache. Only HTTP traffic is eligible for redirection. The port to which the Webcache is connected cannot be a member ofan aggregated link. IP packets with IP Options set will not be redirected.For further information about configuring the Switch 4400, refer to thedocumentation that accompanies the switch.The Switch 4400SE (3C17206) cannot redirect web traffic to theWebcache unless you purchase and install the SuperStack 3 Switch4400SE Enhanced Software Upgrade (3C17207). Contact your supplier ifyou need to purchase this upgrade.Important Considerations for the Switch 4924 and 4950This section contains some important considerations when deploying theWebcache with the Switch 4924 (3C17701) or the Switch 4950(3C17706). The Switch 4924 or 4950 support the SuperStack 3 Webcache1000/3000.dua1611-5aaa04.book Page 39 Friday, November 29, 2002 8:56 PM
