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HP 5500 Ei 5500 Si Switch Series Configuration Guide

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    							 158 
•  Configure track entries on Switch C to monitor Switch A and Switch B. When Switch A or Switch B 
fails, Switch C immediately takes over the AVF on Switch A or Switch B. 
Figure 43  Network diagram 
 
 
Configuration procedure 
1. Configure Switch A: 
# Configure VLAN 2. 
 system-view 
[SwitchA] vlan 2 
[SwitchA-vlan2] port gigabitethernet 1/0/5 
[SwitchA-vlan2] quit 
# Configure VRRP to operate in load balancing mode. 
[SwitchA] vrrp mode load-balance 
# Create VRRP group 1 and configure  its virtual IP address as 10.1.1.1. 
[SwitchA] interface vlan-interface 2 
[SwitchA-Vlan-interface2] ip address 10.1.1.2 24 
[SwitchA-Vlan-interface2] vrrp vrid 1 virtual-ip 10.1.1.1 
# Set the priority of Switch A in VRRP group 1 to  120, which is higher than that of Switch B (110) 
and that of Switch C (100), so that Switch A can become the master. 
[SwitchA-Vlan-interface2] vrrp vrid 1 priority 120 
# Configure Switch A to operate in preemptive mode , so that it can become the master whenever 
it works normally; configure the preemption delay as five seconds to avoid frequent status 
switchover. 
[SwitchA-Vlan-interface2] vrrp vrid 1 preempt-mode timer delay 5 
[SwitchA-Vlan-interface2]  quit 
Host AHost BHost C
Switch A Switch B Switch C
Vlan-int2
IP: 10.1.1.2/24
VIP: 10.1.1.1/24
Network
Vlan-int2
IP: 10.1.1.3/24
VIP: 10.1.1.1/24 Vlan-int2
IP: 10.1.1.4/24
VIP: 10.1.1.1/24
Master
AVF 1 Backup
AVF 2 Backup
AVF 3
IP: 10.1.1.5/24
Gateway IP: 10.1.1.1/24 IP: 10.1.1.6/24
Gateway IP: 10.1.1.1/24 IP: 10.1.1.7/24
Gateway IP: 10.1.1.1/24
Vlan-int3 Vlan-int3
Vlan-int3
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    							 159 
# Create track entry 1 to associate with the physical s t a t u s  o f  V L A N - i n t e r f a c e  3  o n  S w i t c h  A .  W h e n  
the track entry becomes negative, it  means that the interface fails.  
[SwitchA] track 1 interface vlan-interface 3 
# Configure VF tracking to monitor track entr y 1 and specify the value by which the weight 
decreases, making the weight of Switch A decrease by more than 245 (250 in this example) when 
track entry 1 turns to negative. In such a case, anot her router with a higher weight can take over.  
[SwitchA] interface vlan-interface 2 
[SwitchA-Vlan-interface2] vrrp vrid 1 weight track 1 reduced 250 
2. Configure Switch B: 
# Configure VLAN 2. 
 system-view 
[SwitchB] vlan 2 
[SwitchB-vlan2] port gigabitethernet 1/0/5 
[SwitchB-vlan2] quit 
# Configure VRRP to operate in load balancing mode. 
[SwitchB] vrrp mode load-balance 
# Create VRRP group 1 and configure  its virtual IP address as 10.1.1.1. 
[SwitchB] interface vlan-interface 2 
[SwitchB-Vlan-interface2] ip address 10.1.1.3 24 
[SwitchB-Vlan-interface2] vrrp vrid 1 virtual-ip 10.1.1.1 
# Set the priority of Switch B in VRRP group 1 to 110, which is higher than that of Switch C (100), 
so that Switch B can become the master when Switch A fails. 
[SwitchB-Vlan-interface2] vrrp vrid 1 priority 110 
# Set Switch B to operate in preemptive mode. The preemption delay is five seconds. 
[SwitchB-Vlan-interface2] vrrp vrid 1 preempt-mode timer delay 5 
[SwitchB-Vlan-interface2] quit 
# Create track entry 1 to associate with the physical  s t a t u s  o f  V L A N - i n t e r f a c e  3  o n  S w i t c h  B .  W h e n  
the track entry becomes negative, it  means that the interface fails.  
[SwitchB] track 1 interface vlan-interface 3 
# Configure VF tracking to monitor track entr y 1 and specify the value by which the weight 
decreases, making the weight of Switch B decrea se by more than 245 (250 in this example) when 
track entry 1 turns to negative. In such a case, anot her router with a higher weight can take over.  
[SwitchB] interface vlan-interface 2 
[SwitchB-Vlan-interface2] vrrp vrid 1 weight track 1 reduced 250 
3. Configure Switch C: 
# Configure VLAN 2. 
 system-view 
[SwitchC] vlan 2 
[SwitchC-vlan2] port gigabitethernet 1/0/5 
[SwitchC-vlan2] quit 
# Configure VRRP to operate in load balancing mode. 
[SwitchC] vrrp mode load-balance 
# Create VRRP group 1 and configure  its virtual IP address as 10.1.1.1. 
[SwitchC] interface vlan-interface 2 
[SwitchC-Vlan-interface2] ip address 10.1.1.4 24 
[SwitchC-Vlan-interface2] vrrp vrid 1 virtual-ip 10.1.1.1
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    							 160 
# Set Switch C to operate in preemptive mode. The preemption delay is five seconds. 
[SwitchC-Vlan-interface2] vrrp vrid 1 preempt-mode timer delay 5 
[SwitchC-Vlan-interface2] quit 
# Create track entry 1 to associate with the physical s t a t u s  o f  V L A N - i n t e r f a c e  3  o n  S w i t c h  C .  W h e n  
the track entry becomes negative, it  means that the interface fails.  
[SwitchC] track 1 interface vlan-interface 3 
# Configure VF tracking to monitor track entr y 1 and specify the value by which the weight 
decreases, making the weight of Switch C decrea se by more than 245 (250 in this example) when 
track entry 1 turns to negative. In such a case, anot her router with a higher weight can take over.  
[SwitchC] interface vlan-interface 2 
[SwitchC-Vlan-interface2] vrrp vrid 1 weight track 1 reduced 250 
[SwitchC-Vlan-interface2] quit 
# Create track entries 2 and 3 to monitor Switch A and Switch B, respectively. If a track entry 
becomes negative, it indicates that the corresponding switch fails.  
[SwitchC] bfd echo-source-ip 1.2.3.4 
[SwitchC] track 2 bfd echo interface vlan-interface 2 remote ip 10.1.1.2\
 local ip 
10.1.1.4 
[SwitchC] track 3 bfd echo interface vlan-interface 2 remote ip 10.1.1.3\
 local ip 
10.1.1.4  
# Configure VF tracking to monitor track entry  2. When track entry 2 becomes negative, the LVF 
on Switch C whose corresponding AVF is on the switch with the IP address of 10.1.1.2 
immediately becomes active. Switch C takes over the AVF on Switch A. 
[SwitchC] interface vlan-interface 2 
[SwitchC-Vlan-interface2] vrrp vrid  1 track 2 forwarder-switchover member-ip 10.1.1.2 
# Configure VF tracking to monitor track entry  3. When track entry 2 becomes negative, the LVF 
on Switch C whose corresponding AVF is on the switch with the IP address of 10.1.1.3 
immediately becomes active. Switch C takes over the AVF on Switch B. 
[SwitchC-Vlan-interface2] vrrp vrid  1 track 3 forwarder-switchover member-ip 10.1.1.3 
4. Verify the configuration: 
After the configuration, Host A can ping the external network. To verify your configuration, use the  
display vrrp verbose  command. 
# Display the detailed information about VRRP group 1 on Switch A. 
[SwitchA-Vlan-interface2] display vrrp verbose 
 IPv4 Standby Information: 
     Run Mode       : Load Balance 
     Run Method     : Virtual MAC 
 Total number of virtual routers : 1 
   Interface Vlan-interface2 
     VRID           : 1               Adver Timer  : 1 
     Admin Status   : Up              State        : Master 
     Config Pri     : 120             Running Pri  : 120 
     Preempt Mode   : Yes             Delay Time   : 5 
     Auth Type      : None 
     Virtual IP     : 10.1.1.1 
     Member IP List : 10.1.1.2 (Local, Master) 
                      10.1.1.3 (Backup) 
                      10.1.1.4 (Backup)
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    							 161 
   Forwarder Information: 3 Forwarders 1 Active 
     Config Weight  : 255 
     Running Weight : 255 
    Forwarder 01 
     State          : Active 
     Virtual MAC    : 000f-e2ff-0011 (Owner) 
     Owner ID       : 0000-5e01-1101 
     Priority       : 255 
     Active         : local 
    Forwarder 02 
     State          : Listening 
     Virtual MAC    : 000f-e2ff-0012 (Learnt) 
     Owner ID       : 0000-5e01-1103 
     Priority       : 127 
     Active         : 10.1.1.3 
    Forwarder 03 
     State          : Listening 
     Virtual MAC    : 000f-e2ff-0013 (Learnt) 
     Owner ID       : 0000-5e01-1105 
     Priority       : 127 
     Active         : 10.1.1.4 
   Forwarder Weight Track Information: 
     Track Object   : 1              State : Positive       Weight Reduc\
ed : 250 
# Display the detailed information about VRRP group 1 on Switch B. 
[SwitchB-Vlan-interface2] display vrrp verbose 
 IPv4 Standby Information: 
     Run Mode       : Load Balance 
     Run Method     : Virtual MAC 
 Total number of virtual routers : 1 
   Interface Vlan-interface2 
     VRID           : 1               Adver Timer  : 1 
     Admin Status   : Up              State        : Backup 
     Config Pri     : 110             Running Pri  : 110 
     Preempt Mode   : Yes             Delay Time   : 5 
     Become Master  : 4200ms left 
     Auth Type      : None 
     Virtual IP     : 10.1.1.1 
     Member IP List : 10.1.1.3 (Local, Backup) 
                      10.1.1.2 (Master) 
                      10.1.1.4 (Backup) 
   Forwarder Information: 3 Forwarders 1 Active 
     Config Weight  : 255 
     Running Weight : 255 
    Forwarder 01 
     State          : Listening 
     Virtual MAC    : 000f-e2ff-0011 (Learnt) 
     Owner ID       : 0000-5e01-1101 
     Priority       : 127
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    							 162 
     Active         : 10.1.1.2 
    Forwarder 02 
     State          : Active 
     Virtual MAC    : 000f-e2ff-0012 (Owner) 
     Owner ID       : 0000-5e01-1103 
     Priority       : 255 
     Active         : local 
    Forwarder 03 
     State          : Listening 
     Virtual MAC    : 000f-e2ff-0013 (Learnt) 
     Owner ID       : 0000-5e01-1105 
     Priority       : 127 
     Active         : 10.1.1.4 
   Forwarder Weight Track Information: 
     Track Object   : 1              State : Positive       Weight Reduc\
ed : 250 
# Display the detailed information about VRRP group 1 on Switch C. 
[SwitchC-Vlan-interface2] display vrrp verbose 
 IPv4 Standby Information: 
     Run Mode       : Load Balance 
     Run Method     : Virtual MAC 
 Total number of virtual routers : 1 
   Interface Vlan-interface2 
     VRID           : 1               Adver Timer  : 1 
     Admin Status   : Up              State        : Backup 
     Config Pri     : 100             Running Pri  : 100 
     Preempt Mode   : Yes             Delay Time   : 5 
     Become Master  : 4200ms left 
     Auth Type      : None 
     Virtual IP     : 10.1.1.1 
     Member IP List : 10.1.1.4 (Local, Backup) 
                      10.1.1.2 (Master) 
                      10.1.1.3 (Backup) 
   Forwarder Information: 3 Forwarders 1 Active 
     Config Weight  : 255 
     Running Weight : 255 
    Forwarder 01 
     State          : Listening 
     Virtual MAC    : 000f-e2ff-0011 (Learnt) 
     Owner ID       : 0000-5e01-1101 
     Priority       : 127 
     Active         : 10.1.1.2 
    Forwarder 02 
     State          : Listening 
     Virtual MAC    : 000f-e2ff-0012 (Learnt) 
     Owner ID       : 0000-5e01-1103 
     Priority       : 127 
     Active         : 10.1.1.3 
    Forwarder 03
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     State          : Active 
     Virtual MAC    : 000f-e2ff-0013 (Owner) 
     Owner ID       : 0000-5e01-1105 
     Priority       : 255 
     Active         : local 
   Forwarder Weight Track Information: 
     Track Object   : 1              State : Positive       Weight Reduc\
ed : 250 
   Forwarder Switchover Track Information: 
     Track Object   : 2              State : Positive 
       Member IP    : 10.1.1.2 
     Track Object   : 3              State : Positive 
       Member IP    : 10.1.1.3 
The output shows that in VRRP group 1, Switch A is the master and Switch B and Switch C are the 
backups. Each switch has one AVF and two LVFs that act as the backups. 
# When VLAN-interface 3 on Switch A fails, use the display vrrp verbose command to display the 
detailed information about VRRP group 1 on Switch A. 
[SwitchA-Vlan-interface2] display vrrp verbose 
 IPv4 Standby Information: 
     Run Mode       : Load Balance 
     Run Method     : Virtual MAC 
 Total number of virtual routers : 1 
   Interface Vlan-interface2 
     VRID           : 1               Adver Timer  : 1 
     Admin Status   : Up              State        : Master 
     Config Pri     : 120             Running Pri  : 120 
     Preempt Mode   : Yes             Delay Time   : 5 
     Auth Type      : None 
     Virtual IP     : 10.1.1.1 
     Member IP List : 10.1.1.2 (Local, Master) 
                      10.1.1.3 (Backup) 
                      10.1.1.4 (Backup) 
   Forwarder Information: 3 Forwarders 0 Active 
     Config Weight  : 255 
     Running Weight : 5 
    Forwarder 01 
     State          : Initialize 
     Virtual MAC    : 000f-e2ff-0011 (Owner) 
     Owner ID       : 0000-5e01-1101 
     Priority       : 0 
     Active         : 10.1.1.4 
    Forwarder 02 
     State          : Initialize 
     Virtual MAC    : 000f-e2ff-0012 (Learnt) 
     Owner ID       : 0000-5e01-1103 
     Priority       : 0 
     Active         : 10.1.1.3 
    Forwarder 03 
     State          : Initialize
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    							 164 
     Virtual MAC    : 000f-e2ff-0013 (Learnt) 
     Owner ID       : 0000-5e01-1105 
     Priority       : 0 
     Active         : 10.1.1.4 
   Forwarder Weight Track Information: 
     Track Object   : 1              State : Negative       Weight Reduc\
ed : 250 
# Use the display vrrp verbose command to display the detailed information about VRRP group 1 
on Switch C. 
[SwitchC-Vlan-interface2] display vrrp verbose 
 IPv4 Standby Information: 
     Run Mode       : Load Balance 
     Run Method     : Virtual MAC 
 Total number of virtual routers : 1 
   Interface Vlan-interface2 
     VRID           : 1               Adver Timer  : 1 
     Admin Status   : Up              State        : Backup 
     Config Pri     : 100             Running Pri  : 100 
     Preempt Mode   : Yes             Delay Time   : 5 
     Become Master  : 4200ms left 
     Auth Type      : None 
     Virtual IP     : 10.1.1.1 
     Member IP List : 10.1.1.4 (Local, Backup) 
                      10.1.1.2 (Master) 
                      10.1.1.3 (Backup) 
   Forwarder Information: 3 Forwarders 2 Active 
     Config Weight  : 255 
     Running Weight : 255 
    Forwarder 01 
     State          : Active 
     Virtual MAC    : 000f-e2ff-0011 (Take Over) 
     Owner ID       : 0000-5e01-1101 
     Priority       : 85 
     Active         : local 
     Redirect Time  : 93 secs 
     Time-out Time  : 1293 secs 
    Forwarder 02 
     State          : Listening 
     Virtual MAC    : 000f-e2ff-0012 (Learnt) 
     Owner ID       : 0000-5e01-1103 
     Priority       : 85 
     Active         : 10.1.1.3 
    Forwarder 03 
     State          : Active 
     Virtual MAC    : 000f-e2ff-0013 (Owner) 
     Owner ID       : 0000-5e01-1105 
     Priority       : 255 
     Active         : local 
   Forwarder Weight Track Information:
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    							 165 
     Track Object   : 1              State : Positive       Weight Reduc\
ed : 250 
   Forwarder Switchover Track Information: 
     Track Object   : 2              State : Positive 
       Member IP    : 10.1.1.2 
     Track Object   : 3              State : Positive 
       Member IP    : 10.1.1.3 
The output shows that when VLAN interface 3 on Switch A fails, the weight of the\
 AVF on Switch 
A decreases to 5, which is lower than the lower limit of failure. All VFs on Switch A turn to 
initialized state and cannot be used for packet forwarding. The VF corresponding to MAC address 
000f-e2ff-0011 on Switch C becomes the AVF, an d Switch C takes over Switch A for packet 
forwarding.
 
# When the timeout timer (about 1800 seconds) ex pires, display the detailed information about 
VRRP group 1 on Switch C. 
[SwitchC-Vlan-interface2] display vrrp verbose 
 IPv4 Standby Information: 
     Run Mode       : Load Balance 
     Run Method     : Virtual MAC 
 Total number of virtual routers : 1 
   Interface Vlan-interface2 
     VRID           : 1               Adver Timer  : 1 
     Admin Status   : Up              State        : Backup 
     Config Pri     : 100             Running Pri  : 100 
     Preempt Mode   : Yes             Delay Time   : 5 
     Become Master  : 4200ms left 
     Auth Type      : None 
     Virtual IP     : 10.1.1.1 
     Member IP List : 10.1.1.4 (Local, Backup) 
                      10.1.1.2 (Master) 
                      10.1.1.3 (Backup) 
   Forwarder Information: 2 Forwarders 1 Active 
     Config Weight  : 255 
     Running Weight : 255 
    Forwarder 02 
     State          : Listening 
     Virtual MAC    : 000f-e2ff-0012 (Learnt) 
     Owner ID       : 0000-5e01-1103 
     Priority       : 127 
     Active         : 10.1.1.3 
    Forwarder 03 
     State          : Active 
     Virtual MAC    : 000f-e2ff-0013 (Owner) 
     Owner ID       : 0000-5e01-1105 
     Priority       : 255 
     Active         : local 
   Forwarder Weight Track Information: 
     Track Object   : 1              State : Positive       Weight Reduc\
ed : 250 
   Forwarder Switchover Track Information: 
     Track Object   : 2              State : Positive
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    							 166 
       Member IP    : 10.1.1.2 
     Track Object   : 3              State : Positive 
       Member IP    : 10.1.1.3 
The output shows that when the timeout timer expires, the VF corresponding to virtual MAC 
address 000f-e2ff-0011 is remove d, and does not forward the packets destined for the MAC 
address any more.
 
# When Switch A fails, use the  display vrrp verbose command to display the detailed information 
about VRRP group 1 on Switch B. 
[SwitchB-Vlan-interface2] display vrrp verbose 
 IPv4 Standby Information: 
     Run Mode       : Load Balance 
     Run Method     : Virtual MAC 
 Total number of virtual routers : 1 
   Interface Vlan-interface2 
     VRID           : 1               Adver Timer  : 1 
     Admin Status   : Up              State        : Master 
     Config Pri     : 110             Running Pri  : 110 
     Preempt Mode   : Yes             Delay Time   : 5 
     Auth Type      : None 
     Virtual IP     : 10.1.1.1 
     Member IP List : 10.1.1.3 (Local, Master) 
                      10.1.1.4 (Backup) 
   Forwarder Information: 2 Forwarders 1 Active 
     Config Weight  : 255 
     Running Weight : 255 
    Forwarder 02 
     State          : Active 
     Virtual MAC    : 000f-e2ff-0012 (Owner) 
     Owner ID       : 0000-5e01-1103 
     Priority       : 255 
     Active         : local 
    Forwarder 03 
     State          : Listening 
     Virtual MAC    : 000f-e2ff-0013 (Learnt) 
     Owner ID       : 0000-5e01-1105 
     Priority       : 127 
     Active         : 10.1.1.4 
   Forwarder Weight Track Information: 
     Track Object   : 1              State : Positive       Weight Reduc\
ed : 250 
The output shows that when Switch A fails, Swit ch B becomes the master because its priority is 
higher than that of Switch C. 
# When Switch B fails, use the  display vrrp verbose command to display the detailed information 
about VRRP group 1 on Switch C. 
[SwitchC-Vlan-interface2] display vrrp verbose 
 IPv4 Standby Information: 
     Run Mode       : Load Balance 
     Run Method     : Virtual MAC 
 Total number of virtual routers : 1
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    							 167 
   Interface GigabitEthernet1/0/1 
     VRID           : 1               Adver Timer  : 1 
     Admin Status   : Up              State        : Master 
     Config Pri     : 100             Running Pri  : 100 
     Preempt Mode   : Yes             Delay Time   : 5 
     Auth Type      : None 
     Virtual IP     : 10.1.1.1 
     Member IP List : 10.1.1.4 (Local, Master) 
   Forwarder Information: 2 Forwarders 2 Active 
     Config Weight  : 255 
     Running Weight : 255 
    Forwarder 02 
     State          : Active 
     Virtual MAC    : 000f-e2ff-0012 (Take Over) 
     Owner ID       : 0000-5e01-1103 
     Priority       : 85 
     Active         : local 
     Redirect Time  : 93 secs 
     Time-out Time  : 1293 secs 
    Forwarder 03 
     State          : Active 
     Virtual MAC    : 000f-e2ff-0013 (Owner) 
     Owner ID       : 0000-5e01-1105 
     Priority       : 255 
     Active         : local 
   Forwarder Weight Track Information: 
     Track Object   : 1              State : Positive       Weight Reduc\
ed : 250 
   Forwarder Switchover Track Information: 
     Track Object   : 2              State : Negative 
       Member IP    : 10.1.1.2 
     Track Object   : 3              State : Negative 
       Member IP    : 10.1.1.3 
The output shows that when Switch B fails, Switch C becomes the master, and Forwarder 02 on 
Switch C immediately becomes active. Switch C takes over the AVF on Switch B.  
IPv6-based VRRP configuration examples 
Single VRRP group configuration example 
Network requirements 
•  Switch A and Switch B belong to VRRP group 1 with the virtual IP addresses of 1::10/64 and 
FE80::10. 
•   Host A wants to access Host B on the Internet, and learns 1::10/64 as its default gateway through 
RA messages sent by the switches. 
•   When Switch A operates normally, packets sent from Host A to Host B are forwarded by Switch A; 
when Switch A fails, packets sent from Host A to Host B are forwarded by Switch B.
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