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HP 5500 Ei 5500 Si Switch Series Configuration Guide

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    							 42 
Configuring an additional metric for a RIP interface 
Network requirements 
I n  t h e  fo l l owi n g  fi g u re,  R I P  i s  e n a b l e d  o n  a l l  t h e  i n t e r fa c e s  o f  Swi tch  A ,  Swi t ch  B,  Swi tch  C ,  Swi tch  D,  a n d  
Switch E. The switches are interconnected through RIPv2. 
Swi t c h  A  h a s  t w o  l i n k s  t o  Swi t c h  D.  T h e  l i n k  f ro m  Swi t c h  B  t o  Swi t c h  D  i s  m o re  s t a b l e  t h a n  t h a t  f ro m  Swi t c h  
C to Switch D. Configure an additional metric for RIP routes received through VLAN-interface 200 on 
Switch A so that Switch A prefers the 1.1.5.0/24 network learned from Switch B. 
Figure 12 Network diagram 
 
 
Configuration procedure 
1. Configure IP addresses for the in terfaces. (Details not shown.) 
2. Configure RIP basic functions: 
# Configure Switch A. 
 system-view 
[SwitchA] rip 1 
[SwitchA-rip-1] network 1.0.0.0 
[SwitchA-rip-1] version 2 
[SwitchA-rip-1] undo summary 
[SwitchA-rip-1] quit 
# Configure Switch B. 
 system-view 
[SwitchB] rip 1 
[SwitchB-rip-1] network 1.0.0.0 
[SwitchB-rip-1] version 2 
[SwitchB-rip-1] undo summary 
# Configure Switch C. 
 system-view 
[SwitchB] rip 1 
[SwitchC-rip-1] network 1.0.0.0 
[SwitchC-rip-1] version 2 
[SwitchC-rip-1] undo summary 
# Configure Switch D. 
 system-view 
[SwitchD] rip 1 
[SwitchD-rip-1] network 1.0.0.0 
[SwitchD-rip-1] version 2
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    							 43 
[SwitchD-rip-1] undo summary 
# Configure Switch E. 
 system-view 
[SwitchE] rip 1 
[SwitchE-rip-1] network 1.0.0.0 
[SwitchE-rip-1] version 2 
[SwitchE-rip-1] undo summary 
# Display the IP routing table of Switch A. 
[SwitchA] display rip 1 database 
   1.0.0.0/8, cost 0, ClassfulSumm 
       1.1.1.0/24, cost 0, nexthop 1.1.1.1, Rip-interface 
       1.1.2.0/24, cost 0, nexthop 1.1.2.1, Rip-interface 
       1.1.3.0/24, cost 1, nexthop 1.1.1.2 
       1.1.4.0/24, cost 1, nexthop 1.1.2.2 
       1.1.5.0/24, cost 2, nexthop 1.1.1.2 
       1.1.5.0/24, cost 2, nexthop 1.1.2.2 
The output shows that two RIP routes can reach network 1.1.5.0/24. Their next hops are Switch 
B (1.1.1.2) and Switch C (1.1.2.2) respectively, with the same cost of 2. Switch C is the next hop 
router to reach network 1.1.4.0/24, with a cost of 1. 
3.  Configure an additional metric for the RIP interface: 
# Configure an additional metric of 3  for VLAN-interface 200 on Switch A. 
[SwitchA] interface vlan-interface 200 
[SwitchA-Vlan-interface200] rip metricin 3 
[SwitchA-Vlan-interface200] display rip 1 database 
   1.0.0.0/8, cost 0, ClassfulSumm 
       1.1.1.0/24, cost 0, nexthop 1.1.1.1, Rip-interface 
       1.1.2.0/24, cost 0, nexthop 1.1.2.1, Rip-interface 
       1.1.3.0/24, cost 1, nexthop 1.1.1.2 
       1.1.4.0/24, cost 2, nexthop 1.1.1.2 
       1.1.5.0/24, cost 2, nexthop 1.1.1.2 
The output shows that only one RIP route reaches  network 1.1.5.0/24, with the next hop as Switch 
B (1.1.1.2) and a cost of 2. 
Configuring RIP to advertise a summary route 
Network requirements 
In the following figure, Switch A and Switch B run OSPF, Switch D runs RIP, and Switch C runs OSPF and 
RIP. 
Configure RIP to redistribute OSPF routes on Switch C so that Switch D has routes destined for networks 
1 0 .1.1. 0 / 2 4 ,  1 0 . 2 .1. 0 / 2 4 ,  1 0 . 5 .1. 0 / 2 4 ,  a n d  1 0 . 6 .1. 0 / 2 4 .  
Configure route summarization on Switch C and advertise only the summary route 10.0.0.0/8, reducing 
the routing table size of Switch D.
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    							 44 
Figure 13 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] ospf 
[SwitchA-ospf-1] area 0 
[SwitchA-ospf-1-area-0.0.0.0] network 10.5.1.0 0.0.0.255 
[SwitchA-ospf-1-area-0.0.0.0] network 10.2.1.0 0.0.0.255 
[SwitchA-ospf-1-area-0.0.0.0] quit 
# Configure Switch B. 
 system-view 
[SwitchB] ospf 
[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] network 10.6.1.0 0.0.0.255 
[SwitchB-ospf-1-area-0.0.0.0] quit 
# Configure Switch C. 
 system-view 
[SwitchC] ospf 
[SwitchC-ospf-1] area 0 
[SwitchC-ospf-1-area-0.0.0.0] network 10.1.1.0 0.0.0.255 
[SwitchC-ospf-1-area-0.0.0.0] network 10.2.1.0 0.0.0.255 
[SwitchC-ospf-1-area-0.0.0.0] quit 
3. Configure RIP basic functions: 
# Configure Switch C. 
 system-view 
[SwitchC] rip 1 
[SwitchC-rip-1] network 11.3.1.0 
[SwitchC-rip-1] version 2 
[SwitchC-rip-1] undo summary 
# Configure Switch D. 
 system-view
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    							 45 
[SwitchD] rip 1 
[SwitchD-rip-1] network 11.0.0.0 
[SwitchD-rip-1] version 2 
[SwitchD-rip-1] undo summary 
[SwitchD-rip-1] quit 
# Configure RIP to redistribute the routes from OSPF process 1 and direct routes on Switch C. 
[SwitchC-rip-1] import-route direct 
[SwitchC-rip-1] import-route ospf 1 
# Display the routing table information of Switch D. 
[SwitchD] display ip routing-table 
Routing Tables: Public 
         Destinations : 10       Routes : 10 
 
Destination/Mask    Proto  Pre  Cost         NextHop         Interface 
 
10.1.1.0/24         RIP    100  1            11.3.1.1        Vlan300 
10.2.1.0/24         RIP    100  1            11.3.1.1        Vlan300 
10.5.1.0/24         RIP    100  1            11.3.1.1        Vlan300 
10.6.1.0/24         RIP    100  1            11.3.1.1        Vlan300 
11.3.1.0/24         Direct 0    0            11.3.1.2        Vlan300 
11.3.1.2/32         Direct 0    0            127.0.0.1       InLoop0 
11.4.1.0/24         Direct 0    0            11.4.1.2        Vlan400 
11.4.1.2/32         Direct 0    0            127.0.0.1       InLoop0 
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. Configure route summarization on Switch C and  advertise only the summary route 10.0.0.0/8: 
[SwitchC] interface vlan-interface 300 
[SwitchC-Vlan-interface300] rip summary-address 10.0.0.0 8 
# Display the routing table information of Switch D. 
[SwitchD] display ip routing-table 
Routing Tables: Public 
         Destinations : 7        Routes : 7 
 
Destination/Mask    Proto  Pre  Cost         NextHop         Interface 
 
10.0.0.0/8          RIP    100  1            11.3.1.1        Vlan300 
11.3.1.0/24         Direct 0    0            11.3.1.2        Vlan300 
11.3.1.2/32         Direct 0    0            127.0.0.1       InLoop0 
11.4.1.0/24         Direct 0    0            11.4.1.2        Vlan400 
11.4.1.2/32         Direct 0    0            127.0.0.1       InLoop0 
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
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    							 46 
RIP FRR configuration example 
Network requirements 
Switch S, Switch A, and Switch D are interconnected through RIPv2, as illustrated in  Figure 14. C onfigure 
RIP FRR so that when Link A between Switch S and Switch D fails, services can be switched to Link B 
immediately. 
Figure 14  Network diagram 
 
 
Configuration procedure 
1. Configure IP addresses for the interfaces  on each switch and configure RIPv2: 
Follow  Figure 14  to c
 onfigure the IP address and subnet mask of each interface on the switches. 
(Details not shown.)  
Configure RIPv2 on the switches, ensuring that Switch A, Switch D, and Switch S can communicate 
with each other at Layer 3. (Details not shown.)  
2.  Configure RIP FRR: 
# Configure Switch S.  
 system-view 
[SwitchS] bfd echo-source-ip 1.1.1.1 
[SwitchS] ip ip-prefix abc index 10 permit 4.4.4.4 32 
[SwitchS] route-policy frr permit node 10 
[SwitchS-route-policy] if-match ip-prefix abc 
[SwitchS-route-policy] apply fast-reroute backup-interface vlan-interfac\
e 100 
backup-nexthop 12.12.12.2 
[SwitchS-route-policy] quit 
[SwitchS] rip 1 
[SwitchS-rip-1] fast-reroute route-policy frr 
[SwitchS-rip-1] quit 
# Configure Switch D.  
 system-view 
[SwitchD] bfd echo-source-ip 4.4.4.4 
[SwitchD] ip ip-prefix abc index 10 permit 1.1.1.1 32 
[SwitchD] route-policy frr permit node 10 
[SwitchD-route-policy] if-match ip-prefix abc 
[SwitchD-route-policy] apply fast-reroute backup-interface vlan-interfac\
e 101 
backup-nexthop 24.24.24.2 
[SwitchD-route-policy] quit 
[SwitchD] rip 1 
[SwitchD-rip-1] fast-reroute route-policy frr 
Switch S Switch D
Switch A
Loop 0
1.1.1.1/32
V l
a
n-i
n
t1 0
0
1 2 .
1
2 .
1
2.
1
/2 4
Vlan-int200
13.13.13.1/24 Vlan-int200
13.13.13.2/24
V la n
-
in t
1 0 0
1 2.1
2.1
2.2
/2 4
V
la n-
in t
1
01
2 4
.2 4
.2 4
.2 /
2 4 V
la n
-in
t1 0
1
2 4
.2 4
.2 4
.4 /
2
4
Loop 0
4.4.4.4/32
Link A
Link B
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    							 47 
[SwitchD-rip-1] quit47 
3. Verify the configuration: 
# Display route 4.4.4.4/32 on Switch S and you can view the backup next hop information.  
[SwitchS] display ip routing-table 4.4.4.4 verbose 
Routing Table : Public 
Summary Count : 1 
 
  Destination: 4.4.4.4/32 
     Protocol: RIP             Process ID: 1 
   Preference: 100                   Cost: 1 
 IpPrecedence:                    QosLcId: 
      NextHop: 13.13.13.2       Interface: vlan200 
    BkNextHop: 12.12.12.2     BkInterface: vlan100 
  RelyNextHop: 0.0.0.0          Neighbor : 0.0.0.0 
    Tunnel ID: 0x0                  Label: NULL 
  BKTunnel ID: 0x0                BKLabel: NULL 
        State: Active Adv             Age: 00h01m27s 
          Tag: 0 
# Display route 1.1.1.1/32 on Switch D. You  can find the backup next hop information.  
[SwitchD] display ip routing-table 1.1.1.1 verbose 
Routing Table : Public 
Summary Count : 1 
 
  Destination: 1.1.1.1/32 
     Protocol: RIP             Process ID: 1 
   Preference: 100                   Cost: 1 
 IpPrecedence:                    QosLcId: 
      NextHop: 13.13.13.1       Interface: vlan200 
    BkNextHop: 24.24.24.2     BkInterface: vlan101 
  RelyNextHop: 0.0.0.0          Neighbor : 0.0.0.0 
    Tunnel ID: 0x0                  Label: NULL 
  BKTunnel ID: 0x0                BKLabel: NULL 
        State: Active Adv             Age: 00h01m27s 
          Tag: 0 
Configuring BFD for RIP (single-hop detection in BFD echo 
packet mode) 
Network requirements 
In the following figure, Switch A and Switch C are interconnected through a Layer 2 switch. 
VLAN-interface 100 of the two switches runs RIP process 1, BFD is enabled on VLAN-interface 100 of 
Switch A. 
Switch A is connected to Switch C through Switch B. VLAN-interface 200 on Switch A runs RIP process 
2; VLAN-interface 300 on Switch C, and VLAN-interface 200 and VLAN-interface 300 on Switch B run 
RIP process 1.
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    							 48 
Configure a static route and enable static route redistribution into RIP on Switch C. Switch A learns the 
static route sent by Switch C, the outbound interface of the route is the interface connected to the Layer 
2 switch.  
Configure BFD so that when the link between Switch C and the Layer 2 switch fails, BFD can quickly 
detect the link failure and notify it to RIP, and the BFD session goes down. In response, RIP deletes the 
neighbor relationship with Switch C and the route information received from Switch C. Then, Switch A 
learns the static route sent by Switch C with the outbound interface being the interface connected to 
Switch B.  
Figure 15  Network diagram 
 
 
Configuration procedure 
1. Configure IP addresses for inte rfaces. (Details not shown.) 
2. Configure RIP basic functions:  
# Configure Switch A. 
[SwitchA] rip 1 
[SwitchA-rip-1] network 192.168.1.0 
[SwitchA-rip-1] quit 
[SwitchA] interface vlan-interface 100 
[SwitchA-Vlan-interface100] rip bfd enable 
[SwitchA-Vlan-interface100] quit 
[SwitchA] rip 2 
[SwitchA-rip-2] network 192.168.2.0 
# Configure Switch B. 
[SwitchB] rip 1 
[SwitchB-rip-1] network 192.168.2.0 
[SwitchB-rip-1] network 192.168.3.0 
[SwitchB-rip-1] quit 
# Configure Switch C.  
[SwitchC] rip 1 
[SwitchC-rip-1] network 192.168.1.0 
[SwitchC-rip-1] network 192.168.3.0 
[SwitchC-rip-1] import-route static 
[SwitchC-rip-1] quit  
3. Configure BFD parameters:
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    							 49 
# Configure Switch A. 
[SwitchA] bfd session init-mode active 
[SwitchA] bfd echo-source-ip 11.11.11.11 
[SwitchA] interface vlan-interface 100 
[SwitchA-Vlan-interface100] bfd min-transmit-interval 500 
[SwitchA-Vlan-interface100] bfd min-receive-interval 500 
[SwitchA-Vlan-interface100] bfd detect-multiplier 7 
[SwitchA-Vlan-interface100] quit 
[SwitchA] quit 
4. Configure a static route on Switch C: 
[SwitchC] ip route-static 100.1.1.1 24 null 0 
5. Verify the configuration: 
# Display the BFD session information of Switch A.  
 display bfd session 
 Total Session Num: 1            Init Mode: Active 
 Session Working Under Echo Mode: 
 LD          SourceAddr      DestAddr        State   Holdtime    Interfa\
ce 
 5           192.168.1.1     192.168.1.2     Up      2000ms      Vlan100\
 
# Display the RIP route 100.1.1.0/24 learned by Switch A. 
 display ip routing-table 100.1.1.0 24 verbose 
Routing Table : Public 
Summary Count : 2 
  Destination: 100.1.1.0/24 
     Protocol: RIP             Process ID: 1 
   Preference: 100                   Cost: 1 
 IpPrecedence:                    QosLcId: 
      NextHop: 192.168.1.2      Interface: vlan-interface 100 
    BkNextHop: 0.0.0.0         BkInterface: 
  RelyNextHop: 0.0.0.0          Neighbor : 192.168.1.2 
    Tunnel ID: 0x0                  Label: NULL 
  BKTunnel ID: 0x0                BKLabel: NULL 
        State: Active Adv             Age: 00h00m47s 
          Tag: 0 
  Destination: 100.1.1.0/24 
     Protocol: RIP             Process ID: 2 
   Preference: 100                   Cost: 2 
 IpPrecedence:                    QosLcId: 
      NextHop: 192.168.2.2      Interface: vlan-interface 200 
    BkNextHop: 0.0.0.0        BkInterface: 
  RelyNextHop: 0.0.0.0          Neighbor : 192.168.2.2 
    Tunnel ID: 0x0                  Label: NULL 
  BKTunnel ID: 0x0                BKLabel: NULL 
        State: Inactive Adv           Age: 00h12m50s 
        Tag: 0 
# Enable RIP event debugging on Switch A. 
 debugging rip 1 event 
 terminal debugging
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    							 50 
# When the link between Switch C and the Layer 2 switch fails, Switch A can quickly detect the 
change. 
%Jan 19 10:41:51:203 2008 SwitchA BFD/4/LOG:Sess[192.168.1.1/192.168.1.2\
, 
Vlan-interface 100,Ctrl], Sta: UP->DOWN, Diag: 1 
*Jan 19 10:33:12:813 2008 SwitchA RM/6/RMDEBUG: RIP-BFD: Message Type Disable, Connect 
Type Direct-connect, Pkt Type Echo, Src IP Address 192.168.1.1, Src IFIndex4, Nbr IP 
Address 192.168.1.2. 
# Display the BFD information of Switch A. 
Switch A has deleted the neighbor relationship  with Switch C and no output is displayed. 
 display bfd session 
# Display the RIP routes of RIP process 1 on Switch A.  
The RIP route learned from Switch C is no longer existent. 
 display rip 1 route 
 Route Flags: R - RIP, T - TRIP 
              P - Permanent, A - Aging, S - Suppressed, G - Garbage-coll\
ect 
 -----------------------------------------------------------------------\
----- 
# Display the RIP route 100.1.1.0/24 learned on Switch A.  
 display ip routing-table 100.1.1.0 24 verbose 
Routing Table : Public 
Summary Count : 1 
 
  Destination: 100.1.1.0/24 
     Protocol: RIP             Process ID: 2 
   Preference: 100                   Cost: 2 
 IpPrecedence:                    QosLcId: 
      NextHop: 192.168.2.2      Interface: vlan-interface 200 
    BkNextHop: 0.0.0.0        BkInterface: 
  RelyNextHop: 0.0.0.0          Neighbor : 192.168.2.2 
    Tunnel ID: 0x0                  Label: NULL 
  BKTunnel ID: 0x0                BKLabel: NULL 
        State: Active Adv             Age: 00h18m40s 
          Tag: 0 
Configuring BFD for RIP (bidirectional detection in BFD control 
packet mode) 
Network requirements 
In the following figure, Switch A is connected to Switch C through Switch B. VLAN-interface 100 on 
Switch A, VLAN-interface 200 on Switch C, and VLAN-interface 200 and VLAN-interface 100 on Switch 
B run RIP process 1. 
Configure a static route to Switch C on Switch A, an d configure a static route to Switch A on Switch C. 
Enable BFD on VLAN-interface 100 of Switch A and VLAN-interface 200 of Switch C. 
Switch A is connected to Switch C through Switch D. VLAN-interface 300 on Switch A runs RIP process 
2; VLAN-interface 400 on Switch C, and VLAN-interface 300 and VLAN-interface 400 on Switch D run 
RIP process 1.
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    							 51 
Enable static route redistribution into RIP on Switch A and Switch C so  that Switch A and Switch C have 
routes to send to each other. Switch A learns the static route sent by Switch C, the outbound interface is 
the interface connected to Switch B. 
Configure BFD so that when the link between Switch B and Switch C fails, BFD can quickly detect the link 
failure and notify it to RIP, and the BFD session goes down. In response, RIP deletes the neighbor 
relationship with Switch C and the route information received from Switch C. Then, Switch A learns the 
static route sent by Switch C, the outbound interface of the route is the interface connected to Switch D. 
Figure 16  Network diagram 
 
 
Configuration procedure 
1. Configure IP addresses for inte rfaces. (Details not shown.) 
2. Configure RIP basic functions and enable static rout e redistribution into RIP so that Switch A and 
Switch C have routes to send to each other: 
# Configure Switch A. 
[SwitchA] rip 1 
[SwitchA-rip-1] network 192.168.1.0 
[SwitchA-rip-1] peer 192.168.2.2 
[SwitchA-rip-1] undo validate-source-address 
[SwitchA-rip-1] import-route static 
[SwitchA-rip-1] quit 
[SwitchA] interface vlan-interface 100 
[SwitchA-Vlan-interface100] rip bfd enable 
[SwitchA-Vlan-interface100] quit 
[SwitchA] rip 2 
[SwitchA-rip-2] network 192.168.3.0 
[SwitchA-rip-2] quit 
# Configure Switch C. 
[SwitchC] rip 1 
[SwitchC-rip-1] network 192.168.2.0 
[SwitchC-rip-1] network 192.168.4.0 
[SwitchC-rip-1] peer 192.168.1.1 
[SwitchC-rip-1] undo validate-source-address 
[SwitchC-rip-1] import-route static
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