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тАО02-19-2013 02:43 PM
тАО02-19-2013 02:43 PM
Two ISP links with HP Switches
I have a customer who recently replaced their (2) Cisco 2600 routers configured in an HSRP with (2) ISP links in an ethernet hand off Active/Standby with (2) HP 5120 switches in an IRF, see below
Interface vlan 2201
ip address 208.68.38.113 28
interface gigabit 1/0/1----------------connected to Primary ISP Link
port link-type access
port access vlan 2201
stp disable
interface gigabit 2/0/1--------------- Connected to Secondary ISP Link
port link-type access
port-access vlan 2201
stp disable
Two things I had to do in order for above configuration to work.
disconnected secondary ISP link otherwise the switch would report an error "Same IP address 208.68.38.113 detected" and disable stp on ports.
I think the only way to configure the above scenario is to undo IRF between both HP 5120 swtiches and configure VRRP for dynamic failover, but it defeats the purpose of IRF.
Why did I had to disable STP on ports? I was not able to ping the ISP routers until I dsiable the STP.
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тАО03-24-2014 07:01 AM
тАО03-24-2014 07:01 AM
Re: Two ISP links with HP Switches
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тАО03-26-2014 07:12 AM
тАО03-26-2014 07:12 AM
Re: Two ISP links with HP Switches
Hi aali
Sounds like your ISP has a problem with STP. Usually you dont have to disable STP on the Port. In addition, the message "Same IP address 208.68.38.113 detected" points to a loop.
br
Manuel