04-29-2008 10:00 AM - edited 03-05-2019 10:41 PM
Can anyone tell me what is it messages in console %C4K_EBM-CLUSTER_MEMBER_14-4-HOSTFLAPPING: Host 02:01:00:00:00:00 in vlan 150 is flapping .
I have this:
------------------ show version ------------------
Cisco IOS Software, Catalyst 4000 L3 Switch Software (cat4000-I9S-M), Version 12.2(25)EW, RELEASE SOFTWARE (fc1)
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 1986-2004 by Cisco Systems, Inc.
Compiled Fri 10-Dec-04 14:26 by kellythw
ROM: 12.2(20r)EW1
Dagobah Revision 95, Swamp Revision 6
8901SW254 uptime is 1 year, 25 weeks, 3 days, 1 hour, 32 minutes
Uptime for this control processor is 1 year, 25 weeks, 3 days, 1 hour, 32 minutes
System returned to ROM by power-on
System restarted at 10:22:00 UTC Thu Nov 2 2006
System image file is "bootflash:"
cisco WS-C4507R (MPC8245) processor (revision 8) with 524288K bytes of memory.
Processor board ID FOX0851021H
MPC8245 CPU at 400Mhz, Supervisor V
Last reset from PowerUp
8 Virtual Ethernet interfaces
58 Gigabit Ethernet interfaces
511K bytes of non-volatile configuration memory.
Configuration register is 0x2101
Chassis Type : WS-C4507R
Power consumed by backplane : 40 Watts
Mod Ports Card Type Model Serial No.
---+-----+--------------------------------------+------------------+-----------
1 2 Supervisor V 1000BaseX (GBIC) WS-X4516 JAB0905024M
2 2 Supervisor V 1000BaseX (GBIC) WS-X4516 JAB090604EF
3 24 10/100/1000BaseT (RJ45) WS-X4424-GB-RJ45 JAE084501JM
4 24 10/100/1000BaseT (RJ45) WS-X4424-GB-RJ45 JAE08501ZAQ
5 6 1000BaseX (GBIC) WS-X4306-GB JAE1123KT0L
M MAC addresses Hw Fw Sw Status
--+--------------------------------+---+------------+----------------+---------
1 0013.1a1f.3b00 to 0013.1a1f.3b01 2.0 12.2(20r)EW1 12.2(25)EW Ok
2 0013.1a1f.3b02 to 0013.1a1f.3b03 2.0 12.2(20r)EW1 12.2(25)EW, Ok
3 0012.01f1.97e0 to 0012.01f1.97f7 1.6 Ok
4 0012.01f1.ccc0 to 0012.01f1.ccd7 1.6 Ok
5 000e.83a1.c4e8 to 000e.83a1.c4ed 4.3 Ok
Solved! Go to Solution.
04-30-2008 05:24 AM
HI,
This error message appears on the switch when the switch detects the specified host address as a source address on multiple ports.
Cause
The issue can occur due to Spanning Tree Protocol (STP) loops in the network that cause packet drops from the specific host. In addition to packet drops, STP loops lead to several other symptoms, which are listed here:
Loss of connectivity to, from, and through affected network regions.
High link utilization (often 100 percent).
High switch backplane utilization (compared to the baseline utilization).
Syslog messages that indicate packet looping in the network (for example, HSRP duplicate IP address messages).
Syslog messages that indicate constant address relearning or MAC address flapping messages.
An increase in the number of output drops on many interfaces.
-> Sushil
04-30-2008 05:24 AM
HI,
This error message appears on the switch when the switch detects the specified host address as a source address on multiple ports.
Cause
The issue can occur due to Spanning Tree Protocol (STP) loops in the network that cause packet drops from the specific host. In addition to packet drops, STP loops lead to several other symptoms, which are listed here:
Loss of connectivity to, from, and through affected network regions.
High link utilization (often 100 percent).
High switch backplane utilization (compared to the baseline utilization).
Syslog messages that indicate packet looping in the network (for example, HSRP duplicate IP address messages).
Syslog messages that indicate constant address relearning or MAC address flapping messages.
An increase in the number of output drops on many interfaces.
-> Sushil
Discover and save your favorite ideas. Come back to expert answers, step-by-step guides, recent topics, and more.
New here? Get started with these tips. How to use Community New member guide