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HSRP

Static, RIP, EIGRP, OSPF, BGP, IBGP, IS-IS and any other routing.

HSRP

Postby Guest » Fri Dec 31, 2010 7:40 am


hi all & happy new year to u all.

i am gonna use two Layer 3 switches, gonna configure hsrp and OSPF on them. I want end user PCs to connect directly to those L3 switches. Question is, do i have to use a third switch in order to make HSRP work? or without using a third switch, an uplink between two switches would be enough for HSRP?

i appreciate any help, tx in advance.

Guest
 

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Re:HSRP

Postby Guest » Fri Dec 31, 2010 7:54 am


Hi,

HSRP requires L2 conectivity between the two routers (or L3 switches). So HSRP would work in case you have a trunk between the Switches for all VLANs with HSRP required. A third switch is not nessessary.

What I would recommend to read is also:

Understanding and Troubleshooting HSRP Problems in Catalyst Switch Networks

http://www.cisco.com/en/US/tech/tk648/tk362/technologies_tech_note09186a0080094afd.shtml

Hope this helps

Martin

Guest
 

Re:HSRP

Postby Guest » Fri Dec 31, 2010 8:42 am


tx martin.

Guest
 

Re:HSRP

Postby Guest » Fri Dec 31, 2010 9:44 am


Greetings fellow sadikhov'er

Guest
 

Re:HSRP

Postby Guest » Fri Dec 31, 2010 10:54 am


Hi,

A very happy new year to you

Are you going to connect PCs direcly to L3 switch modules.  In this scenario, say if one L3 fails (power supply failure) then, even if HSRP keeps running betn two L3 switches, your PCs will not have any redundant path to the other core.  So anyway the PCs will loose network connectivity.

You can use an access switch to connect PCs and then youcan provide uplinks to each core from this access switch

Hope this helps

Guest
 

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