When I run "sho int vlan1" on a 2924 in our lab, I see a huge number of collisions. Yet, I see no collisions on any of the physical switch ports. What is the meaning of collisions for a vlan interface?
switch2#sho int | include col VLAN1 is up, line protocol is up 0 output errors, 17802276 collisions, 0 interface resets 0 babbles, 0 late collision, 0 deferred FastEthernet0/1 is up, line protocol is up 0 output errors, 0 collisions, 1 interface resets 0 babbles, 0 late collision, 0 deferred FastEthernet0/2 is up, line protocol is up 0 output errors, 0 collisions, 1 interface resets 0 babbles, 0 late collision, 0 deferred FastEthernet0/3 is up, line protocol is up 0 output errors, 0 collisions, 1 interface resets 0 babbles, 0 late collision, 0 deferred FastEthernet0/4 is up, line protocol is up 0 output errors, 0 collisions, 1 interface resets 0 babbles, 0 late collision, 0 deferred FastEthernet0/5 is up, line protocol is up 0 output errors, 0 collisions, 1 interface resets 0 babbles, 0 late collision, 0 deferred FastEthernet0/6 is down, line protocol is down 0 output errors, 0 collisions, 1 interface resets 0 babbles, 0 late collision, 0 deferred FastEthernet0/7 is up, line protocol is up 0 output errors, 0 collisions, 1 interface resets 0 babbles, 0 late collision, 0 deferred FastEthernet0/8 is up, line protocol is up 0 output errors, 0 collisions, 1 interface resets 0 babbles, 0 late collision, 0 deferred FastEthernet0/9 is down, line protocol is down 0 output errors, 0 collisions, 1 interface resets 0 babbles, 0 late collision, 0 deferred FastEthernet0/10 is down, line protocol is down 0 output errors, 0 collisions, 1 interface resets 0 babbles, 0 late collision, 0 deferred FastEthernet0/11 is down, line protocol is down 0 output errors, 0 collisions, 1 interface resets 0 babbles, 0 late collision, 0 deferred FastEthernet0/12 is up, line protocol is up 0 output errors, 0 collisions, 1 interface resets 0 babbles, 0 late collision, 0 deferred FastEthernet0/13 is up, line protocol is up 0 output errors, 0 collisions, 1 interface resets 0 babbles, 0 late collision, 0 deferred FastEthernet0/14 is down, line protocol is down 0 output errors, 0 collisions, 1 interface resets 0 babbles, 0 late collision, 0 deferred FastEthernet0/15 is down, line protocol is down 0 output errors, 0 collisions, 1 interface resets 0 babbles, 0 late collision, 0 deferred FastEthernet0/16 is up, line protocol is up 0 output errors, 0 collisions, 1 interface resets 0 babbles, 0 late collision, 0 deferred FastEthernet0/17 is down, line protocol is down 0 output errors, 0 collisions, 1 interface resets 0 babbles, 0 late collision, 0 deferred FastEthernet0/18 is down, line protocol is down 0 output errors, 0 collisions, 1 interface resets 0 babbles, 0 late collision, 0 deferred FastEthernet0/19 is up, line protocol is up 0 output errors, 0 collisions, 1 interface resets 0 babbles, 0 late collision, 0 deferred FastEthernet0/20 is up, line protocol is up 0 output errors, 0 collisions, 1 interface resets 0 babbles, 0 late collision, 0 deferred FastEthernet0/21 is down, line protocol is down 0 output errors, 0 collisions, 1 interface resets 0 babbles, 0 late collision, 0 deferred FastEthernet0/22 is down, line protocol is down 0 output errors, 0 collisions, 1 interface resets 0 babbles, 0 late collision, 0 deferred FastEthernet0/23 is up, line protocol is up 0 output errors, 0 collisions, 1 interface resets 0 babbles, 0 late collision, 0 deferred FastEthernet0/24 is up, line protocol is up 0 output errors, 0 collisions, 1 interface resets 0 babbles, 0 late collision, 0 deferred switch2#sho ver Cisco Internetwork Operating System Software IOS (tm) C2900XL Software (C2900XL-H2S-M), Version 12.0(5.1)XP, MAINTENANCE INTERIM SOFTWARE Copyright (c) 1986-1999 by cisco Systems, Inc. Compiled Fri 10-Dec-99 10:57 by cchang Image text-base: 0x00003000, data-base: 0x002BA814
ROM: Bootstrap program is C2900XL boot loader
switch2 uptime is 5 weeks, 4 days, 19 hours, 42 minutes System returned to ROM by power-on System image file is "flash:c2900XL-h2s-mz-120.5.1-XP.bin"
cisco WS-C2924-XL (PowerPC403GA) processor (revision 0x11) with
8192K/1024K bytes of memory. Processor board ID 0x0E, with hardware revision 0x01 Last reset from power-onProcessor is running Enterprise Edition Software Cluster member switch capable
24 FastEthernet/IEEE 802.3 interface(s)32K bytes of flash-simulated non-volatile configuration memory. Base ethernet MAC Address: 00:01:96:52:5F:C0 Motherboard assembly number: 73-3382-08 Power supply part number: 34-0834-01 Motherboard serial number: FAB0412236J Power supply serial number: DAB03504V7A Model revision number: A0 Motherboard revision number: A0 Model number: WS-C2924-XL-EN System serial number: FAB0412U0CA Configuration register is 0xF