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6235 Views 6 Replies Latest reply: Dec 23, 2010 4:20 PM by Stan RSS

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Line protocol on Interface FastEthernet0 changes state

Dec 21, 2010 9:44 PM

Stan 33 posts since
Oct 13, 2010

Anyone know the possible reasons for why the line protocol state keeps doing up/down? Does keepalive play into this at all (currently set to 10)?

 

Config is single 871W router connected to cable modem and then internal LAN.

 

Another detail is 192.168.1.100 is the console port (COM1) and the PC connected to fa0.

 

Swapped cable. Thanks.

 

Dec 14 20:18:44 EST: %LINEPROTO-5-UPDOWN: Line protocol on Interface Loopback0, changed state to up
Dec 14 20:18:45 EST: %SYS-6-LOGGINGHOST_STARTSTOP: Logging to host 192.168.1.100 port 514 started - CLI initiated
Dec 14 20:19:58 EST: %SYS-5-CONFIG_I: Configured from console by console
Dec 14 22:31:11 EST: %SYS-5-CONFIG_I: Configured from console by console
Dec 14 22:35:58 EST: %SYS-6-LOGGINGHOST_STARTSTOP: Logging to host 192.168.1.100 port 514 stopped - CLI initiated
Dec 14 22:36:17 EST: %SYS-5-CONFIG_I: Configured from console by console
Dec 14 23:05:46 EST: %SYS-5-CONFIG_I: Configured from console by console
Dec 15 00:08:40 EST: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0, changed state to down
Dec 15 00:08:41 EST: %LINK-3-UPDOWN: Interface FastEthernet0, changed state to down
Dec 15 00:08:43 EST: %LINK-3-UPDOWN: Interface FastEthernet0, changed state to up
Dec 15 00:08:44 EST: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0, changed state to up
Dec 15 00:09:01 EST: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0, changed state to down
Dec 15 00:09:02 EST: %LINK-3-UPDOWN: Interface FastEthernet0, changed state to up
Dec 15 00:09:03 EST: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0, changed state to up
Dec 15 12:01:54 EST: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0, changed state to down
Dec 15 12:01:55 EST: %LINK-3-UPDOWN: Interface FastEthernet0, changed state to down
Dec 15 12:01:57 EST: %LINK-3-UPDOWN: Interface FastEthernet0, changed state to up
Dec 15 12:01:58 EST: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0, changed state to up
Dec 15 12:02:15 EST: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0, changed state to down
Dec 15 12:02:16 EST: %LINK-3-UPDOWN: Interface FastEthernet0, changed state to up
Dec 15 12:02:17 EST: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0, changed state to up

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