RSM uses virtual connections to the switch fabric. If you put a vlan port on the rsm and then assign this same vlan to one of the switchports, then you should be able to connect to the rsm via that port. vlan interfaces are virtual interfaces between the switch and the rsm. -----Original Message----- From: Sim, CT (Chee Tong) [mailto:[EMAIL PROTECTED]] Sent: Thursday, December 07, 2000 7:01 AM To: '[EMAIL PROTECTED]' Cc: '[EMAIL PROTECTED]' Subject: RE: how does traffic from CAT55 switch moule to Route switch modu le (RSM)? Sorry , I send again, as I want to add one more question Dear all, 1)I have a cat 55 switch which got 2 X 10/100BaseTX Ethernet module and 1 X Route Switch Module (RSM), so, I have 48 ports on the switches module and divided into 3 VLANs some of ports were set to VLAN 1, 2 3, and the RSM module is connect thru our WAN router to world, and RSM, the layer 3 device is used to route the traffic between VLANs but I don't know how does the traffic from the switches module do to RSM module as there is no cable connection or it do internally? 2)I found my RSM module is configured 3 VLANs inteface, 100.100.100.99, 100.100.200.99, 100.100.300.99, but I can't see there are phyiscal interface. Why? Below shown the conf, sometarou is the switch module and SOMETAROU is the RSM module 3)From the sh cdp nei configuration in the switch module below, I wonder why only VLAN1 connect to RSM module, I thought we configured VLANs 1 2 3 in switches module sometarou> sh cdp nei * - indicates vlan mismatch. # - indicates duplex mismatch. Port Device-ID Port-ID Platform -------- ------------------------------- ------------------------- ------------ 2/1 SOMETAROU Vlan1 cisco RSP2 3/1 066506067(somenosuke) 3/1 WS-C5505 3/2 066506067(somenosuke) 3/2 WS-C5505 3/3 066506067(somenosuke) 3/3 WS-C5505 3/4 066506067(somenosuke) 3/4 WS-C5505 sometarou> session 2 Trying Router-2... Connected to Router-2. Escape character is '^]'. ******************** * Catalyst 5505 #2 * * RSM WS-X5302 * * SOMETAROU * ******************** User Access Verification Password: SOMETAROU>sh cdp nei Capability Codes: R - Router, T - Trans Bridge, B - Source Route Bridge S - Switch, H - Host, I - IGMP, r - Repeater Device ID Local Intrfce Holdtme Capability Platform Port ID 066507401(sometarou)Vlan1 132 T B S WS-C5505 2/1 SOMETAROU> ================================================================== De informatie opgenomen in dit bericht kan vertrouwelijk zijn en is uitsluitend bestemd voor de geadresseerde. Indien u dit bericht onterecht ontvangt wordt u verzocht de inhoud niet te gebruiken en de afzender direct te informeren door het bericht te retourneren. ================================================================== The information contained in this message may be confidential and is intended to be exclusively for the addressee. Should you receive this message unintentionally, please do not use the contents herein and notify the sender immediately by return e-mail. ================================================================== _______________________________________________________ To unsubscribe from the CCIELAB list, send a message to [EMAIL PROTECTED] with the body containing: unsubscribe ccielab _________________________________ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]