Re: Doubts on HSRP

It looks like one example is a VRF example, where the IPs can all be the
same...

But the first conifguration you show would not make any sense as they are
all different "VLANS"?

What exaclty are you trying to accomplish?

--
Garry L. Baker
"There is no 'patch' for stupidity." - www.sqlsecurity.com
On Mon, Aug 2, 2010 at 9:47 AM, Sonu Khandelwal (sokhande) <
sokhande_at_cisco.com> wrote:
> Hi Taufik,
> What will be the use of using just 1 virtual-ip and using multiple HSRP
> group? Each sub interface will have ip in different subnet so how would
> it help to give same virtual-ip to all sub interface.
>
> Am I missing something?
>
> Thanks,
> Sonu
>  -----Original Message-----
> From: nobody_at_groupstudy.com [mailto:nobody_at_groupstudy.com] On Behalf Of
> Taufik Kurniawan
> Sent: Monday, August 02, 2010 11:16 AM
> To: Cisco certification; cisco_at_groupstudy.com
> Subject: Doubts on HSRP
>
> here
> http://www.cisco.com/en/US/docs/ios/ipapp/configuration/guide/ipapp_hsrp
> .html#wp1054649
>
>
> Can we use the physical IP on each sub interface, and virtual IP ( from
> HSRP
> ) to be the same ?as I tried ... it showed like below
>
> -----------------
> !
> interface FastEthernet0/1
>  no ip address
>  duplex auto
>  speed auto
>  standby mac-refresh 30
> !
> interface FastEthernet0/1.2
>  encapsulation dot1Q 2
>  ip address 100.100.100.100 255.255.255.0
>  standby 1 ip 100.100.100.1
>  standby 1 priority 110
>  standby 1 preempt
>  standby 1 name HSRP1
> !
> interface FastEthernet0/1.3
>  encapsulation dot1Q 3
>  standby 2 follow HSRP1
> !
> interface FastEthernet0/1.4
>  encapsulation dot1Q 4
>  standby 3 follow HSRP1
>
> -----------------
>
> Example: Improving CPU and Network Performance with HSRP Multiple Group
> Optimization
>
> The following example shows how to configure an HSRP client and master
> group:
>
> Router(config)# *interface Ethernet1/0
> *
>
>  Router(config-if)# *no shutdown
> *
>
>  Router(config-if)# *standby mac-refresh 30
> *
>
>  ! Client Hello message interval
>
>  !
>
>  Router(config)# *interface Ethernet1/0.2
> *
>
>  Router(config-if)#* no shutdown
> *
>
>  Router(config-if)#* encapsulation dot1Q 2
> *
>
>  Router(config-if)#* ip vrf forwarding VRF2
> *
>
>  Router(config-if)#* ip address 10.0.0.100 255.255.0.0
> *
>
>  Router(config-if)#* standby 1 ip 10.0.0.254
> *
>
>  Router(config-if)#* standby 1 priority 110
> *
>
>  Router(config-if)#* standby 1 preempt
> *
>
>  Router(config-if)#* standby 1 name HSRP1
> *
>
>  !Server group
>
>  !
>
>  Router(config)# *interface Ethernet1/0.3
> *
>
>  Router(config-if)#* no shutdown
> *
>
>  Router(config-if)#* encapsulation dot1Q 3
> *
>
>  Router(config-if)#* ip vrf forwarding VRF3
> *
>
>  Router(config-if)#* ip address 10.0.0.100 255.255.0.0
> *
>
>  Router(config-if)#* standby 2 ip 10.0.0.254
> *
>
>  Router(config-if)#* standby 2 follow HSRP1
> *
>
>  ! Client group
>
>  !
>
>  Router(config)# *interface Ethernet1/0.4
> *
>
>  Router(config-if)#* no shutdown
> *
>
>  Router(config-if)#* encapsulation dot1Q 4
> *
>
>  Router(config-if)#* ip vrf forwarding VRF4
> *
>
>  Router(config-if)#* ip address 10.0.0.100 255.255.0.0
> *
>
>  Router(config-if)#* standby 2 ip 10.0.0.254
> *
>
>  Router(config-if)#* standby 2 follow HSRP1
> *
>
>  ! Client group
>
>
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