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HSRP tracking

Hi Expert,

We have implemented hsrp in our networ. We are using HSRP tracking functionality  ( tracking serial interface). I want to know how much time standy router take to get active state when serial link get down.

Thanks in advance.

Surya

1 Accepted Solution

Accepted Solutions

Reza Sharifi
Hall of Fame
Hall of Fame

Hi,

Have a look at this Q&A

Q. Will the standby router take over if the active router LAN interface state is "interface up line protocol down"?



A. Yes, the standby router takes over once the holdtime  expires. By default, this is equivalent to three hello packets from the  active router having been missed. The actual convergence time depends on  the HSRP timers configured for the group and possibly on routing  protocol convergence. The HSRP hellotime timer defaults to three and the  holdtime timer defaults to ten

http://www.cisco.com/en/US/tech/tk648/tk362/technologies_q_and_a_item09186a00800a9679.shtml

HTH

View solution in original post

1 Reply 1

Reza Sharifi
Hall of Fame
Hall of Fame

Hi,

Have a look at this Q&A

Q. Will the standby router take over if the active router LAN interface state is "interface up line protocol down"?



A. Yes, the standby router takes over once the holdtime  expires. By default, this is equivalent to three hello packets from the  active router having been missed. The actual convergence time depends on  the HSRP timers configured for the group and possibly on routing  protocol convergence. The HSRP hellotime timer defaults to three and the  holdtime timer defaults to ten

http://www.cisco.com/en/US/tech/tk648/tk362/technologies_q_and_a_item09186a00800a9679.shtml

HTH