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HP 5500 Ei 5500 Si Switch Series Configuration Guide

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[SwitchD-ospf-1] return 
# Display OSPF neighbor information on Switch A. 
[SwitchA] display ospf peer verbose 
 
          OSPF Process 1 with Router ID 1.1.1.1 
                  Neighbors 
 
 Area 0.0.0.0 interface 192.168.1.1(Vlan-interface1)s neighbors 
 Router ID: 2.2.2.2          Address: 192.168.1.2      GR State: Normal \
   State: 2-Way  Mode: None  Priority: 1 
   DR: 192.168.1.4  BDR: 192.168.1.3  MTU: 0 
   Dead timer due in 38  sec 
   Neighbor is up for 00:01:31 
   Authentication Sequence: [ 0 ] 
 
 Router ID: 3.3.3.3          Address: 192.168.1.3      GR State: Normal \
   State: Full  Mode: Nbr is Master  Priority: 1 
   DR: 192.168.1.4  BDR: 192.168.1.3  MTU: 0 
   Dead timer due in 31  sec 
   Neighbor is up for 00:01:28 
   Authentication Sequence: [ 0 ] 
 
 Router ID: 4.4.4.4          Address: 192.168.1.4      GR State: Normal \
   State: Full  Mode: Nbr is Master  Priority: 1 
   DR: 192.168.1.4  BDR: 192.168.1.3  MTU: 0 
   Dead timer due in 31  sec 
   Neighbor is up for 00:01:28 
   Authentication Sequence: [ 0 ] 
Switch D becomes the DR, and Switch C is the BDR. 
3. Configure router priorities on interfaces: 
# Configure Switch A. 
[SwitchA] interface vlan-interface 1 
[SwitchA-Vlan-interface1] ospf dr-priority 100 
[SwitchA-Vlan-interface1] quit 
# Configure Switch B. 
[SwitchB] interface vlan-interface 1 
[SwitchB-Vlan-interface1] ospf dr-priority 0 
[SwitchB-Vlan-interface1] quit 
# Configure Switch C. 
[SwitchC] interface vlan-interface 1 
[SwitchC-Vlan-interface1] ospf dr-priority 2 
[SwitchC-Vlan-interface1] quit 
# Display neighbor information on Switch D. 
 display ospf peer verbose 
 
          OSPF Process 1 with Router ID 4.4.4.4 
                  Neighbors
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 Area 0.0.0.0 interface 192.168.1.4(Vlan-interface1)s neighbors 
 Router ID: 1.1.1.1      Address: 192.168.1.1      GR State: Normal 
   State: Full  Mode:Nbr is  Slave  Priority: 100 
   DR: 192.168.1.4  BDR: 192.168.1.3  MTU: 0 
   Dead timer due in 31  sec 
   Neighbor is up for 00:11:17 
   Authentication Sequence: [ 0 ] 
 
 Router ID: 2.2.2.2      Address: 192.168.1.2      GR State: Normal 
   State: Full  Mode:Nbr is  Slave  Priority: 0 
   DR: 192.168.1.4  BDR: 192.168.1.3  MTU: 0 
   Dead timer due in 35  sec 
   Neighbor is up for 00:11:19 
   Authentication Sequence: [ 0 ] 
 
 Router ID: 3.3.3.3      Address: 192.168.1.3      GR State: Normal 
   State: Full  Mode:Nbr is  Slave  Priority: 2 
   DR: 192.168.1.4  BDR: 192.168.1.3  MTU: 0 
   Dead timer due in 33  sec 
   Neighbor is up for 00:11:15 
   Authentication Sequence: [ 0 ] 
The DR and BDR are not changed, because the new router priority settings do not take effect 
immediately. 
4. Restart OSPF process:  
# Restart the OSPF process of Switch D.  
 reset ospf 1 process 
Warning : Reset OSPF process? [Y/N]:y 
# Display neighbor information on Switch D. 
 display ospf peer verbose 
 
          OSPF Process 1 with Router ID 4.4.4.4 
                  Neighbors 
 
 Area 0.0.0.0 interface 192.168.1.4(Vlan-interface1)s neighbors 
 Router ID: 1.1.1.1          Address: 192.168.1.1      GR State: Normal \
   State: Full  Mode: Nbr is Slave  Priority: 100 
   DR: 192.168.1.1  BDR: 192.168.1.3  MTU: 0 
   Dead timer due in 39  sec 
   Neighbor is up for 00:01:40 
   Authentication Sequence: [ 0 ] 
 
 Router ID: 2.2.2.2          Address: 192.168.1.2      GR State: Normal \
   State: 2-Way  Mode: None  Priority: 0 
   DR: 192.168.1.1  BDR: 192.168.1.3  MTU: 0 
   Dead timer due in 35  sec 
   Neighbor is up for 00:01:44 
   Authentication Sequence: [ 0 ]
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 Router ID: 3.3.3.3          Address: 192.168.1.3      GR State: Normal \
   State: Full  Mode: Nbr is Slave  Priority: 2 
   DR: 192.168.1.1  BDR: 192.168.1.3  MTU: 0 
   Dead timer due in 39  sec 
   Neighbor is up for 00:01:41 
   Authentication Sequence: [ 0 ] 
Switch A becomes the DR, and Switch C is the BDR. 
The full neighbor state means an adjacency has been established. The  2-way neighbor state 
means the two routers are not the DR or BDR, and they do not exchange LSAs. 
# Display OSPF interface information. 
[SwitchA] display ospf interface 
 
          OSPF Process 1 with Router ID 1.1.1.1 
                  Interfaces 
 
 Area: 0.0.0.0 
 IP Address      Type      State   Cost  Pri   DR             BDR 
 192.168.1.1     Broadcast DR      1     100   192.168.1.1    192.168.1.\
3 
 
[SwitchB] display ospf interface 
 
          OSPF Process 1 with Router ID 2.2.2.2 
                  Interfaces 
 
 Area: 0.0.0.0 
 IP Address      Type      State    Cost  Pri   DR            BDR 
The interface state  DROther means the interface is not the DR/BDR. 
Configuring OSPF virtual links 
Network requirements 
In Figure 44 , Area 2 has no direct connection to Area 0, and Area 1 acts as the Transit Area to connect 
Area 2 to Area 0 via a configured virtual link between Switch B and Switch C. 
After configuration, Switch B can learn routes to Area 2. 
Figure 44  Network diagram
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Configuration procedure 
1. Configure IP addresses for inte rfaces. (Details not shown.) 
2. Configure OSPF basic functions: 
# Configure Switch A. 
 system-view 
[SwitchA] ospf 1 router-id 1.1.1.1 
[SwitchA-ospf-1] area 0 
[SwitchA-ospf-1-area-0.0.0.0] network 10.1.1.0 0.0.0.255 
[SwitchA-ospf-1-area-0.0.0.0] quit 
# Configure Switch B. 
 system-view 
[SwitchB] ospf 1 router-id 2.2.2.2 
[SwitchB-ospf-1] area 0 
[SwitchB-ospf-1-area-0.0.0.0] network 10.1.1.0 0.0.0.255 
[SwitchB-ospf-1-area-0.0.0.0] quit 
[SwitchB-ospf-1] area 1 
[SwitchB–ospf-1-area-0.0.0.1] network 10.2.1.0 0.0.0.255 
[SwitchB–ospf-1-area-0.0.0.1] quit 
[SwitchB-ospf-1] quit 
# Configure Switch C. 
 system-view 
[SwitchC] ospf 1 router-id 3.3.3.3 
[SwitchC-ospf-1] area 1 
[SwitchC-ospf-1-area-0.0.0.1] network 10.2.1.0 0.0.0.255 
[SwitchC-ospf-1-area-0.0.0.1] quit 
[SwitchC-ospf-1] area 2 
[SwitchC–ospf-1-area-0.0.0.2] network 10.3.1.0 0.0.0.255 
[SwitchC–ospf-1-area-0.0.0.2] quit 
[SwitchC-ospf-1] quit 
# Configure Switch D. 
 system-view 
[SwitchD] ospf 1 router-id 4.4.4.4 
[SwitchD-ospf-1] area 2 
[SwitchD-ospf-1-area-0.0.0.2] network 10.3.1.0 0.0.0.255 
[SwitchD-ospf-1-area-0.0.0.2] quit 
# Display the OSPF routing table of Switch B. 
[SwitchB] display ospf routing 
 
          OSPF Process 1 with Router ID 2.2.2.2 
                   Routing Tables 
 Routing for Network 
 Destination        Cost     Type    NextHop         AdvRouter       Are\
a 
 10.2.1.0/24        2        Transit 10.2.1.1        3.3.3.3         0.0\
.0.1 
 10.1.1.0/24        2        Transit 10.1.1.2        2.2.2.2         0.0\
.0.0 
 Total Nets: 2 
 Intra Area: 2  Inter Area: 0  ASE: 0  NSSA: 0
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Area 0 has no direct connection to Area 2, so the routing table of Switch B has no route to Area 
2. 
3.  Configure a virtual link: 
# Configure Switch B. 
[SwitchB] ospf 
[SwitchB-ospf-1] area 1 
[SwitchB-ospf-1-area-0.0.0.1] vlink-peer 3.3.3.3 
[SwitchB-ospf-1-area-0.0.0.1] quit 
[SwitchB-ospf-1] quit 
# Configure Switch C. 
[SwitchC] ospf 1 
[SwitchC-ospf-1] area 1 
[SwitchC-ospf-1-area-0.0.0.1] vlink-peer 2.2.2.2 
[SwitchC-ospf-1-area-0.0.0.1] quit 
# Display the OSPF routing table of Switch B. 
[SwitchB] display ospf routing 
          OSPF Process 1 with Router ID 2.2.2.2 
                   Routing Tables 
 
 Routing for Network 
 Destination        Cost     Type    NextHop         AdvRouter       Are\
a 
 10.2.1.0/24        2        Transit 10.2.1.1        3.3.3.3         0.0\
.0.1 
 10.3.1.0/24        5        Inter   10.2.1.2        3.3.3.3         0.0\
.0.0 
 10.1.1.0/24        2        Transit 10.1.1.2        2.2.2.2         0.0\
.0.0 
 
 Total Nets: 3 
 Intra Area: 2  Inter Area: 1  ASE: 0  NSSA: 0 
Switch B has learned the route 10.3.1.0/24 to Area 2. 
Configuring OSPF Graceful Restart 
Network requirements 
As shown in Figure 45 , Switch A, Switch B, and Switch C that belong to the same autonomous system 
and the same OSPF routing domain are GR capable.  
Switch A acts as the non-IETF standard GR Restarter,  whereas Switch B and Switch C are the GR Helpers 
and re-synchronize their LSDB with Switch A through OOB communication of GR.
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Figure 45 Network diagram 
 
 
Configuration procedure 
1. Configure IP addresses for inte rfaces. (Details not shown.) 
2. Configure OSPF basic functions: 
# Configure Switch A 
 system-view 
[SwitchA] router id 1.1.1.1 
[SwitchA] ospf 100 
[SwitchA-ospf-100] area 0 
[SwitchA-ospf-100-area-0.0.0.0] network 192.1.1.0 0.0.0.255 
[SwitchA-ospf-100-area-0.0.0.0] quit 
# Configure Switch B 
 system-view 
[SwitchB] router id 2.2.2.2 
[SwitchB] ospf 100 
[SwitchB-ospf-100] area 0 
[SwitchB-ospf-100-area-0.0.0.0] network 192.1.1.0 0.0.0.255 
[SwitchB-ospf-100-area-0.0.0.0] quit 
# Configure Switch C 
 system-view 
[SwitchC] router id 3.3.3.3 
[SwitchC] ospf 100 
[SwitchC-ospf-100] area 0 
[SwitchC-ospf-100-area-0.0.0.0] network 192.1.1.0 0.0.0.255 
[SwitchC-ospf-100-area-0.0.0.0] quit 
3. Configure OSPF GR: 
# Configure Switch A as the non-IETF standard OSPF  GR Restarter: enable the link-local signaling 
capability, the out-of-band re-syn chronization capability, and non  IETF standard Graceful Restart 
capability for OSPF process 100.  
[SwitchA-ospf-100] enable link-local-signaling 
[SwitchA-ospf-100] enable out-of-band-resynchronization 
[SwitchA-ospf-100] graceful-restart 
[SwitchA-ospf-100] return 
# Configure Switch B as the GR Helper: enable the link-local signaling capability and the 
out-of-band re-synchronization c apability for OSPF process 100.
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[SwitchB-ospf-100] enable link-local-signaling 
[SwitchB-ospf-100] enable out-of-band-resynchronization 
# Configure Switch C as the GR Helper: enable the link-local signaling capability and the 
out-of-band re-synchronization capability for OSPF process 100.  
[SwitchC-ospf-100] enable link-local-signaling 
[SwitchC-ospf-100] enable out-of-band-resynchronization 
4. Verify the configuration: 
# After the configurations on Switch A, Switch B,  and Switch C are completed and the switches are 
running steadily, enable OSPF Graceful Restart event debugging and then restart the OSPF 
process using GR on Switch A. 
 debugging ospf event graceful-restart 
 terminal monitor 
 terminal debugging 
 reset ospf 100 process graceful-restart  
Warning : Reset OSPF process? [Y/N]:y 
%Dec 12 09:36:12:500 2006 SwitchA RM/3/RMLOG:OSPF-NBRCHANGE: Process 100\
, Neighbour 
192.1.1.1(Vlan100) from Full to Down 
OSPF 100: Intf 192.1.1.1 Rcv InterfaceDown State BackupDR -> Down. 
OSPF 100 nonstandard GR Started for OSPF Router 
OSPF 100 notify RM that OSPF process will enter GR. 
OSPF 100 created GR wait timer, timeout interval is 40(s). 
OSPF 100 created GR Interval timer,timeout interval is 120(s). 
OSPF 100: Intf 192.1.1.1 Rcv InterfaceUp State Down -> Waiting. 
OSPF 100: Intf 192.1.1.1 Rcv BackupSeen State Waiting -> BackupDR. 
OSPF 100 created OOB Progress timer for neighbor 192.1.1.2. 
OSPF 100 restarted OOB Progress timer for neighbor 192.1.1.2. 
OSPF 100 restarted OOB Progress timer for neighbor 192.1.1.2. 
%Oct 22 09:36:12:566 2008 SwitchA RM/3/RMLOG:OSPF-NBRCHANGE: Process 100\
, Neighbour 
192.1.1.2(Vlan100) from Loading to Full 
OSPF 100 restarted OOB Progress timer for neighbor 192.1.1.2. 
OSPF 100 deleted OOB Progress timer for neighbor 192.1.1.2. 
OSPF 100 Gr Wait Timeout timer fired. 
OSPF 100 deleted GR wait timer. 
OSPF 100 deleted GR Interval timer. 
OSPF 100 GR Completed for OSPF Router 
OSPF 100 notified RM that OSPF process left GR. 
RM notified that all protocol left GR. 
OSPF 100 started flushing STALE LSA after all protocol left GR. 
OSPF 100: Flush Stale Area LSAs 
OSPF 100: Start Flush Stale ASE + NSSA LSAs 
OSPF 100: End Flush Stale ASE + NSSA LSAs 
Switch A completes GR with the help of Switch B.
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Configuring route filtering 
Network requirements 
As shown in Figure 46: 
•   A
ll the switches in the network run OSPF. The AS is divided into three areas.  
•   Switch A and Switch B work as ABRs.  
Configure Switch C as an ASBR to redistribute external  routes (static routes), and configure a filter policy 
on Switch C to filter out redistributed route 3.1.3.0/24.  
Configure a routing policy on Switch A to filter route 10.5.1.0/24. 
Figure 46  Network diagram 
 
 
Configuration procedure 
1. Configure IP addresses for inte rfaces. (Details not shown.) 
2. Configure OSPF basic functions. (See  Configuring OSPF basic functions) 
3. Configure OSPF to redistribute routes: 
# On Switch C, configure a static ro ute destined for network 3.1.1.0/24. 
 system-view 
[SwitchC] ip route-static 3.1.1.0 24 10.4.1.2 
# On Switch C, configure a static route destined for network 3.1.2.0/24. 
[SwitchC] ip route-static 3.1.2.0 24 10.4.1.2 
# On Switch C, configure a static route destined for network 3.1.3.0/24. 
[SwitchC] ip route-static 3.1.3.0 24 10.4.1.2 
# On Switch C, configure OSPF to redistribute static routes. 
[SwitchC] ospf 1 
[SwitchC-ospf-1] import-route static 
[SwitchC-ospf-1] quit 
# Display the OSPF routing table of Switch A. 
 display ip routing-table 
Routing Tables: Public 
         Destinations : 12       Routes : 12 
 
Destination/Mask    Proto  Pre  Cost         NextHop         Interface
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3.1.1.0/24          O_ASE  150  1            10.2.1.2        Vlan200 
3.1.2.0/24          O_ASE  150  1            10.2.1.2        Vlan200 
3.1.3.0/24          O_ASE  150  1            10.2.1.2        Vlan200 
10.1.1.0/24         Direct 0    0            10.1.1.1        Vlan200 
10.1.1.1/32         Direct 0    0            127.0.0.1       InLoop0 
10.2.1.0/24         Direct 0    0            10.2.1.1        Vlan200 
10.2.1.1/32         Direct 0    0            127.0.0.1       InLoop0 
10.3.1.0/24         OSPF   10   4            10.1.1.2        Vlan100 
10.4.1.0/24         OSPF   10   13           10.2.1.2        Vlan200 
10.5.1.0/24         OSPF   10   14           10.1.1.2        Vlan100 
127.0.0.0/8         Direct 0    0            127.0.0.1       InLoop0 
127.0.0.1/32        Direct 0    0            127.0.0.1       InLoop0 
4. On Switch C, filter out route 3.1.3.0/24: 
# Configure the IPv4 prefix list. 
[SwitchC] ip ip-prefix prefix1 index 1 deny 3.1.3.0 24 
[SwitchC] ip ip-prefix prefix1 index 2 permit 3.1.1.0 24 
[SwitchC] ip ip-prefix prefix1 index 3 permit 3.1.2.0 24 
# Reference the prefix list to filter out route 3.1.3.0/24. 
[SwitchC] ospf 1 
[SwitchC-ospf-1] filter-policy ip-prefix prefix1 export static 
# Display the OSPF routing table of Switch A. 
 display ip routing-table 
Routing Tables: Public 
         Destinations : 11       Routes : 11 
 
Destination/Mask    Proto  Pre  Cost         NextHop         Interface 
 
3.1.1.0/24          O_ASE  150  1            10.2.1.2        Vlan200 
3.1.2.0/24          O_ASE  150  1            10.2.1.2        Vlan200 
10.1.1.0/24         Direct 0    0            10.1.1.1        Vlan100 
10.1.1.1/32         Direct 0    0            127.0.0.1       InLoop0 
10.2.1.0/24         Direct 0    0            10.2.1.1        Vlan200 
10.2.1.1/32         Direct 0    0            127.0.0.1       InLoop0 
10.3.1.0/24         OSPF   10   4            10.1.1.2        Vlan100 
10.4.1.0/24         OSPF   10   13           10.2.1.2        Vlan200 
10.5.1.0/24         OSPF   10   14           10.1.1.2        Vlan100 
127.0.0.0/8         Direct 0    0            127.0.0.1       InLoop0 
127.0.0.1/32        Direct 0    0            127.0.0.1       InLoop0 
The route destined for network  3.1.3.0/24 is filtered out. 
5. On Switch A, filter out the route 10.5.1.1/24: 
# Configure the ACL on Switch A. 
 system-view 
[SwitchA] acl number 2000 
[SwitchA-acl-basic-2000] rule 0 deny source 10.5.1.0 0.0.0.255 
[SwitchA-acl-basic-2000] rule 1 permit source any 
[SwitchA-acl-basic-2000] quit 
# Use the ACL to filter route 10.5.1.0/24.
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[SwitchA] ospf 1 
[SwitchA-ospf-1] filter-policy 2000 import 
[SwitchA-ospf-1] quit 
# Display the OSPF routing table of Switch A. 
[SwitchA] display ip routing-table 
Routing Tables: Public 
         Destinations : 10       Routes : 10 
 
Destination/Mask    Proto  Pre  Cost         NextHop         Interface 
 
3.1.1.0/24          O_ASE  150  1            10.2.1.2        Vlan200 
3.1.2.0/24          O_ASE  150  1            10.2.1.2        Vlan200 
10.1.1.0/24         Direct 0    0            10.1.1.1        Vlan100 
10.1.1.1/32         Direct 0    0            127.0.0.1       InLoop0 
10.2.1.0/24         Direct 0    0            10.2.1.1        Vlan200 
10.2.1.1/32         Direct 0    0            127.0.0.1       InLoop0 
10.3.1.0/24         OSPF   10   4            10.1.1.2        Vlan100 
10.4.1.0/24         OSPF   10   13           10.2.1.2        Vlan200 
127.0.0.0/8         Direct 0    0            127.0.0.1       InLoop0 
127.0.0.1/32        Direct 0    0            127.0.0.1       InLoop0 
The route destined for 10.5.1.1/24 is filtered out. 
Configuring OSPF FRR 
Network requirements 
Switch S, Switch A, and Switch D belong to  the same OSPF domain as illustrated in Figure 47. C onfigure 
OSPF FRR so that when the link between Switch S and Switch D fails, traffic can be switched to Link B 
immediately. 
Figure 47  Network diagram 
 
 
Configuration procedure 
1. Configure IP addresses for the interfaces on each switch and configure OSPF. 
Follow  Figure 47  to c
 onfigure the IP address and subnet mask of each interface on the switches. 
(Details not shown.) 
Configure OSPF on the switches, ensuring that Switch S, Switch A, and Switch D can communicate 
with each other at Layer 3. (Details not shown.) 
2.  Configure OSPF FRR:
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