From: Zukque (zukque@gmail.com)
Date: Fri Dec 23 2005 - 22:48:46 GMT-3
Ufffff but, R2 is adding 2.2.2.2 to the OSPF Domain, and R4 prefer this
route via E0 (in Area 3), also I changed the Route Type at R3 Lo0, and Still
goes to R2 via S0
2.0.0.0/24 is subnetted, 1 subnets
O E2 2.2.2.0 [110/20] via 183.1.42.2, 00:00:09, Ethernet0
3.0.0.0/32 is subnetted, 1 subnets
O E2 3.3.3.3 [110/20] via 183.1.0.2, 00:00:09, Serial0
Why R4 is nos using S0 to get to 2.2.2.2 (yes because the cost / and R4 is
not Using A0 to get to 2.2.2.2)
R4#show ip ospf interface | in is up | Cost: | Area
Serial0 is up, line protocol is up
Internet Address 183.1.0.4/24, Area 0
Process ID 1, Router ID 183.1.0.4, Network Type POINT_TO_MULTIPOINT, Cost:
1000
Ethernet0 is up, line protocol is up
Internet Address 183.1.42.4/24, Area 3
Process ID 1, Router ID 183.1.0.4, Network Type BROADCAST, Cost: 65
On 12/23/05, Brian Dennis <bdennis@internetworkexpert.com> wrote:
>
> When you shut down the serial interface on R4, R4 is not a backbone router
> anymore since it's only interface in area 0 is now down. R4's path to
reach
> any network is now via the Ethernet. But when the serial interface is up,
> R4 MUST send the traffic to R2 irrespective of the cost across the
Ethernet.
>
> Traffic can not go like this: Area 3 -> Area 2. It must go Area 3 -> Area
> 0 -> Area 2.
>
> As per the RFC:
>
> 3.2. Inter-area routing
>
> When routing a packet between two non-backbone areas the
> backbone is used. The path that the packet will travel can be
> broken up into three contiguous pieces: an intra-area path from
> the source to an area border router, a backbone path between the
> source and destination areas, and then another intra-area path
> to the destination. The algorithm finds the set of such paths
> that have the smallest cost.
>
> Lastly if you are still confused I would highly recommend that you draw
> this out on paper and then consider how OSPF handles inter-area traffic.
>
> HTH,
>
> Brian Dennis, CCIE #2210 (R&S/ISP-Dial/Security)
> bdennis@internetworkexpert.com
>
> Internetwork Expert, Inc.
> http://www.InternetworkExpert.com
> Toll Free: 877-224-8987
> Direct: 775-745-6404 (Outside the US and Canada)
>
> ________________________________________
> From: Zukque [mailto:zukque@gmail.com]
> Sent: Friday, December 23, 2005 5:05 PM
> To: Brian Dennis
> Cc: Cisco certification
> Subject: Re: IP OSPF COST for IA's
>
> Brian, Sorry but I do not get it
>
> R4>en
> R4#show ip route
> Codes: C - connected, S - static, I - IGRP, R - RIP, M - mobile, B - BGP
> D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area
> N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2
> E1 - OSPF external type 1, E2 - OSPF external type 2, E - EGP
> i - IS-IS, L1 - IS-IS level-1, L2 - IS-IS level-2, ia - IS-IS inter area
> * - candidate default, U - per-user static route, o - ODR
> P - periodic downloaded static route
> Gateway of last resort is not set
> 2.0.0.0/24 is subnetted, 1 subnets
> O E2 2.2.2.0 [110/20] via 183.1.42.2, 05:06:12, Ethernet0
> 3.0.0.0/32 is subnetted, 1 subnets
> O IA 3.3.3.3 [110/1065] via 183.1.0.2, 05:06:12, Serial0
> 4.0.0.0/32 is subnetted, 1 subnets
> C 4.4.4.4 is directly connected, Loopback0
> 183.1.0.0/16 is variably subnetted, 4 subnets, 2 masks
> C 183.1.42.0/24 is directly connected, Ethernet0
> O 183.1.0.2/32 [110/1000] via 183.1.0.2, 05:12:17, Serial0
> O 183.1.0.3/32 [110/1064] via 183.1.0.2, 05:12:18, Serial0
> C 183.1.0.0/24 is directly connected, Serial0
> R4#show ip ospf
> Routing Process "ospf 1" with ID 183.1.0.4 and Domain ID 0.0.0.1
> Supports only single TOS(TOS0) routes
> Supports opaque LSA
> It is an area border and autonomous system boundary router
> Redistributing External Routes from,
> connected, includes subnets in redistribution
> SPF schedule delay 5 secs, Hold time between two SPFs 10 secs
> Minimum LSA interval 5 secs. Minimum LSA arrival 1 secs
> Number of external LSA 2. Checksum Sum 0x17F1B
> Number of opaque AS LSA 0. Checksum Sum 0x0
> Number of DCbitless external and opaque AS LSA 0
> Number of DoNotAge external and opaque AS LSA 0
> Number of areas in this router is 2. 2 normal 0 stub 0 nssa
> External flood list length 0
> Area BACKBONE(0)
> Number of interfaces in this area is 1
> Area has no authentication
> SPF algorithm executed 28 times
> Area ranges are
> Number of LSA 8. Checksum Sum 0x44A36
> Number of opaque link LSA 0. Checksum Sum 0x0
> Number of DCbitless LSA 0
> Number of indication LSA 0
> Number of DoNotAge LSA 0
> Flood list length 0
> Area 3
> Number of interfaces in this area is 1
> Area has no authentication
> SPF algorithm executed 18 times
> Area ranges are
> Number of LSA 13. Checksum Sum 0x5D8B5
> Number of opaque link LSA 0. Checksum Sum 0x0
> Number of DCbitless LSA 0
> Number of indication LSA 0
> Number of DoNotAge LSA 0
> Flood list length 0
> R4#show ip ospf interface
> Serial0 is up, line protocol is up
> Internet Address 183.1.0.4/24 , Area 0
> Process ID 1, Router ID 183.1.0.4, Network Type POINT_TO_MULTIPOINT, Cost:
> 1000
> Transmit Delay is 1 sec, State POINT_TO_MULTIPOINT,
> Timer intervals configured, Hello 30, Dead 120, Wait 120, Retransmit 5
> Hello due in 00:00:03
> Index 1/1, flood queue length 0
> Next 0x0(0)/0x0(0)
> Last flood scan length is 2, maximum is 2
> Last flood scan time is 4 msec, maximum is 4 msec
> Neighbor Count is 1, Adjacent neighbor count is 1
> Adjacent with neighbor 183.1.0.2
> Suppress hello for 0 neighbor(s)
> Ethernet0 is up, line protocol is up
> Internet Address 183.1.42.4/24, Area 3
> Process ID 1, Router ID 183.1.0.4 , Network Type BROADCAST, Cost: 65
> Transmit Delay is 1 sec, State DROTHER, Priority 0
> Designated Router (ID) 183.1.0.2, Interface address 183.1.42.2
> No backup designated router on this network
> Timer intervals configured, Hello 10, Dead 40, Wait 40, Retransmit 5
> Hello due in 00:00:04
> Index 1/2, flood queue length 0
> Next 0x0(0)/0x0(0)
> Last flood scan length is 1, maximum is 5
> Last flood scan time is 0 msec, maximum is 4 msec
> Neighbor Count is 1, Adjacent neighbor count is 1
> Adjacent with neighbor 183.1.0.2 (Designated Router)
> Suppress hello for 0 neighbor(s)
> R4#
> R4#
> R4#conf ter
> Enter configuration commands, one per line. End with CNTL/Z.
> R4(config)#interface serial 0
> R4(config-if)#shutdown
> R4(config-if)#^Z
> R4#
> R4#
> 3d21h: is_up: 0 state: 6 sub state: 1 line: 0
> 3d21h: %OSPF-5-ADJCHG: Process 1, Nbr 183.1.0.2 on Serial0 from FULL to
> DOWN, Neighbor Down: Interface down or detached
> 3d21h: RT: interface Serial0 removed from routing table
> 3d21h: RT: del 183.1.0.0/24 via 0.0.0.0, connected metric [0/0]
> 3d21h: RT: delete subnet route to 183.1.0.0/24
> 3d21h: RT: delete route to 3.3.3.3 via 183.1.0.2, Serial0
> 3d21h: RT: no routes to 3.3.3.3 , flushing
> 3d21h: RT: delete network route to 3.0.0.0
> 3d21h: RT: delete route to 183.1.0.2 via 183.1.0.2, Serial0
> 3d21h: RT: no routes to 183.1.0.2, flushing
> 3d21h: RT: delete route to 183.1.0.3 via 183.1.0.2, Serial0
> 3d21h: RT: no routes to 183.1.0.3, flushing
> R4#
> 3d21h: %SYS-5-CONFIG_I: Configured from console by console
> R4#
> R4#
> R4#
> 3d21h: %LINK-5-CHANGED: Interface Serial0, changed state to
> administratively down
> R4#
> R4#
> R4#
> 3d21h: is_up: 0 state: 6 sub state: 1 line: 0
> 3d21h: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial0, changed
> state to down
> R4#
> 3d21h: is_up: 0 state: 6 sub state: 1 line: 0
> R4#
> R4#
> R4#
> 3d21h: RT: add 3.3.3.3/32 via 183.1.42.2 , ospf metric [110/130]
> 3d21h: RT: network 183.1.0.0 is now variably masked
> 3d21h: RT: add 183.1.0.2/32 via 183.1.42.2, ospf metric [110/65]
> 3d21h: RT: add 183.1.0.3/32 via 183.1.42.2, ospf metric [110/129]
> R4#
> R4#
> R4#show ip route
> Codes: C - connected, S - static, I - IGRP, R - RIP, M - mobile, B - BGP
> D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area
> N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2
> E1 - OSPF external type 1, E2 - OSPF external type 2, E - EGP
> i - IS-IS, L1 - IS-IS level-1, L2 - IS-IS level-2, ia - IS-IS inter area
> * - candidate default, U - per-user static route, o - ODR
> P - periodic downloaded static route
> Gateway of last resort is not set
> 2.0.0.0/24 is subnetted, 1 subnets
> O E2 2.2.2.0 [110/20] via 183.1.42.2, 00:00:04, Ethernet0
> 3.0.0.0/32 is subnetted, 1 subnets
> O IA 3.3.3.3 [110/130] via 183.1.42.2, 00:00:05, Ethernet0
> 4.0.0.0/32 is subnetted, 1 subnets
> C 4.4.4.4 is directly connected, Loopback0
> 183.1.0.0/16 is variably subnetted, 3 subnets, 2 masks
> C 183.1.42.0/24 is directly connected, Ethernet0
> O IA 183.1.0.2/32 [110/65] via 183.1.42.2, 00:00:05, Ethernet0
> O IA 183.1.0.3/32 [110/129] via 183.1.42.2, 00:00:06, Ethernet0
> R4#
> R4#show ip int brief
> Interface IP-Address OK? Method Status Protocol
> BRI0 unassigned YES unset administratively down down
> BRI0:1 unassigned YES unset administratively down down
> BRI0:2 unassigned YES unset administratively down down
> Ethernet0 183.1.42.4 YES manual up up
> Loopback0 4.4.4.4 YES manual up up
> Serial0 183.1.0.4 YES manual administratively down down
> Serial1 unassigned YES unset administratively down down
>
>
>
> On 12/23/05, Brian Dennis <bdennis@internetworkexpert.com> wrote:
> Remember that all inter-area traffic must transit area 0 (an ABR).It
> doesn't matter what the cost is to reach R3's loopback which is in area 2
> across the Ethernet segment that is area 3.
>
> To reach a route in area 2 the traffic must use the area 0 path over the
> path across area 3.If you want to "transit" area 3 to reach area 2 look
> into using a virtual-link across the Ethernet or a tunnel.
>
> HTH,
>
> Brian Dennis, CCIE #2210 (R&S/ISP-Dial/Security)
> bdennis@internetworkexpert.com
>
> Internetwork Expert, Inc.
> http://www.InternetworkExpert.com
> Toll Free: 877-224-8987
> Direct: 775-745-6404 (Outside the US and Canada)
> ________________________________________
> From: Zukque [mailto:zukque@gmail.com ]
> Sent: Friday, December 23, 2005 3:06 PM
> To: Brian Dennis
> Cc: Cisco certification
> Subject: Re: IP OSPF COST for IA's
>
> Thanks for your help, this is a very simple topology..sorry not good
> drawing also :)
>
> R2 is the Hub
> R3 and R4 are the spokes
> R4 is also conected to R2 via Ethernet
>
> Lo0 3.3.3.3/32
> !
> R3 -S0-------------------------------
> ---------------------------------------S0-R2 -Lo0 2.2.2.2/32
> R4-S0--------------------------------- |
> Eth-----------------------------------Eth
>
>
> R3 Lo0 belongs to area 2
> R2, R3, R4 S0s are in area 0
> R4 Eth to R2 Ethe si in area 3
> R2 is redistributing this Lo0 in OSPF using the default type
>
>
> ------------------------------------------------
> R2
> interface Ethernet0
> ip address 183.1.42.2 255.255.255.0
> !
> interface Serial0
> ip address 183.1.0.2 255.255.255.0
> encapsulation frame-relay
> ip ospf network point-to-multipoint
> no frame-relay inverse-arp
> frame-relay map ip 183.1.0.3 203 broadcast
> frame-relay map ip 183.1.0.4 204 broadcast
> !
> router ospf 1
> log-adjacency-changes
> redistribute connected subnets route-map Lo0
> network 183.1.0.0 0.0.0.255 area 0
> network 183.1.42.2 0.0.0.0 area 3
> !
> -----------------------------------------------
> R3:
> !
> interface Loopback0
> ip address 3.3.3.3 255.255.255.255
> interface Serial0
> ip address 183.1.0.3 255.255.255.0
> encapsulation frame-relay
> ip ospf network point-to-multipoint
> frame-relay map ip 183.1.0.2 302 broadcast
> frame-relay map ip 183.1.0.4 302
> no frame-relay inverse-arp
> router ospf 1
> log-adjacency-changes
> network 3.3.3.3 0.0.0.0 area 23
> network 183.1.0.0 0.0.0.255 area 0
> ------------------------------------------
> R4:
> interface Loopback0
> ip address 4.4.4.4 255.255.255.255
> ip ospf network point-to-point
> !
> interface Ethernet0
> ip address 183.1.42.4 255.255.255.0
> ip ospf priority 0
> interface Serial0
> ip address 183.1.0.4 255.255.255.0
> encapsulation frame-relay
> ip ospf network point-to-multipoint
> ip ospf cost 1000
> ip ospf priority 0
> frame-relay map ip 183.1.0.2 402 broadcast
> frame-relay map ip 183.1.0.3 402
> no frame-relay inverse-arp
>
> On 12/23/05, Brian Dennis < bdennis@internetworkexpert.com> wrote:
> Can you post your configurations and a little information about the
> topology?
>
> HTH,
>
> Brian Dennis, CCIE #2210 (R&S/ISP-Dial/Security)
> bdennis@internetworkexpert.com
>
> Internetwork Expert, Inc.
> http://www.InternetworkExpert.com
> Toll Free: 877-224-8987
> Direct: 775-745-6404 (Outside the US and Canada)
> ________________________________________
> From: Zukque [mailto: zukque@gmail.com]
> Sent: Friday, December 23, 2005 1:37 PM
> To: Brian Dennis
> Cc: Cisco certification
> Subject: Re: IP OSPF COST for IA's
>
>
> Brain, but why to get to route 3.3.3.3 the router is choosing S0, E0 has a
> better cost
>
>
> On 12/23/05, Brian Dennis < bdennis@internetworkexpert.com > wrote:
> You have four OSPF routes in your routing table:
>
> 2.0.0.0/24 is subnetted, 1 subnets
> O E22.2.2.0 [110/20] via 183.1.0.2, 00:24:45, Serial0
> 3.0.0.0/32 is subnetted, 1 subnets
> O IA 3.3.3.3 [110/129] via 183.1.0.2, 00:24:45, Serial0
> O 183.1.0.2/32 [110/64] via 183.1.0.2, 00:31:22, Serial0
> O 183.1.0.3/32 [110/128] via 183.1.0.2, 00:31:24, Serial0
>
>
> You adjusted the OSPF cost on the interface to 1000:
>
> 2.0.0.0/24 is subnetted, 1 subnets
> O E2 2.2.2.0 [110/20] via 183.1.42.2 , 00:01:24, Ethernet0
> 3.0.0.0/32 is subnetted, 1 subnets
> O IA3.3.3.3 [110/1065] via 183.1.0.2, 00:01:24, Serial0
> 4.0.0.0/32 is subnetted, 1 subnets
> O 183.1.0.2/32 [110/1000] via 183.1.0.2, 00:01:24, Serial0
> O 183.1.0.3/32 [110/1064] via 183.1.0.2, 00:01:25, Serial0
>
> All of the intra and inter area routes cost have changed.The only
> route that did not change is the E2 route which as you know should not
> change.
>
> As per RFC 2328:
>
> Cost
> The link state cost of the path to the destination.For all
> paths except type 2 external paths this describes the entire
> path's cost.For Type 2 external paths, this field describes
> the cost of the portion of the path internal to the AS.This
> cost is calculated as the sum of the costs of the path's
> constituent links.
>
>
> HTH,
>
> Brian Dennis, CCIE #2210 (R&S/ISP-Dial/Security)
> bdennis@internetworkexpert.com
>
> Internetwork Expert, Inc.
> http://www.InternetworkExpert.com
> Toll Free: 877-224-8987
> Direct: 775-745-6404 (Outside the US and Canada)
>
>
> -----Original Message-----
> From: nobody@groupstudy.com [mailto:nobody@groupstudy.com ] On Behalf Of
> Zukque
> Sent: Friday, December 23, 2005 11:50 AM
> To: Cisco certification
> Subject: IP OSPF COST for IA's
>
> Dears
>
>
> Why IA OSPF route's are not affected with the ip ospf cost command?
> Is there a preference for Intra / Inter / External Route? Please can you
> show me where I can find this in 2328
> Thanks!
>
>
>
> That is: (take a look at 3.3.3.3)
>
> R#show ip ospf neighbor
>
> Neighbor ID Pri State Dead Time Address
> Interface
> 183.1.0.2 1 FULL/-00:01:51 183.1.0.2
> Serial0
> 183.1.0.2 1 FULL/BDR00:00:33 183.1.42.2
> Ethernet0
>
> R#show ip route
> Codes: C - connected, S - static, I - IGRP, R - RIP, M - mobile, B - BGP
> D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area
> N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2
> E1 - OSPF external type 1, E2 - OSPF external type 2, E - EGP
> i - IS-IS, L1 - IS-IS level-1, L2 - IS-IS level-2, ia - IS-IS
> inter
> area
> * - candidate default, U - per-user static route, o - ODR
> P - periodic downloaded static route
>
> Gateway of last resort is not set
>
> 2.0.0.0/24 is subnetted, 1 subnets
> O E22.2.2.0 [110/20] via 183.1.0.2 , 00:24:45, Serial0
> 3.0.0.0/32 is subnetted, 1 subnets
> O IA 3.3.3.3 [110/129] via 183.1.0.2, 00:24:45, Serial0
> 4.0.0.0/32 is subnetted, 1 subnets
> C 4.4.4.4 is directly connected, Loopback0
> 183.1.0.0/16 is variably subnetted, 4 subnets, 2 masks
> C 183.1.42.0/24 is directly connected, Ethernet0
> O 183.1.0.2/32 [110/64] via 183.1.0.2, 00:31:22, Serial0
> O 183.1.0.3/32 [110/128] via 183.1.0.2, 00:31:24, Serial0
> C 183.1.0.0/24 is directly connected, Serial0
>
> R#
> R(config)#interface s0
> R(config-if)#ip ospf cost 1000
> R(config-if)#^Z
>
> R#clear ip route *
>
> 3d16h: RT: add 183.1.42.0/24 via 0.0.0.0, connected metric [0/0]
> 3d16h: RT: add 4.4.4.4/32 via 0.0.0.0, connected metric [0/0]
> 3d16h: RT: add 183.1.0.0/24 via 0.0.0.0, connected metric [0/0]
> 3d16h: RT: network 183.1.0.0 is now variably masked
> 3d16h: RT: add 183.1.0.2/32 via 183.1.0.2, ospf metric [110/1000]
> 3d16h: RT: add 183.1.0.3/32 via 183.1.0.2, ospf metric [110/1064]
> 3d16h: RT: add 3.3.3.3/32 via 183.1.0.2, ospf metric [110/1065]
> 3d16h: RT: add 2.2.2.0/24 via 183.1.42.2, ospf metric [110/20]
>
> R#show ip route
> Codes: C - connected, S - static, I - IGRP, R - RIP, M - mobile, B - BGP
> D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area
> N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2
> E1 - OSPF external type 1, E2 - OSPF external type 2, E - EGP
> i - IS-IS, L1 - IS-IS level-1, L2 - IS-IS level-2, ia - IS-IS
> inter
> area
> * - candidate default, U - per-user static route, o - ODR
> P - periodic downloaded static route
>
> Gateway of last resort is not set
>
> 2.0.0.0/24 is subnetted, 1 subnets
> O E22.2.2.0 [110/20] via 183.1.42.2 , 00:01:24, Ethernet0
> 3.0.0.0/32 is subnetted, 1 subnets
> O IA 3.3.3.3 [110/1065] via 183.1.0.2, 00:01:24, Serial0
> 4.0.0.0/32 is subnetted, 1 subnets
> C 4.4.4.4 is directly connected, Loopback0
> 183.1.0.0/16 is variably subnetted, 4 subnets, 2 masks
> C 183.1.42.0/24 is directly connected, Ethernet0
> O 183.1.0.2/32 [110/1000] via 183.1.0.2, 00:01:24, Serial0
> O 183.1.0.3/32 [110/1064] via 183.1.0.2, 00:01:25, Serial0
> C 183.1.0.0/24 is directly connected, Serial0
>
> R#show ip ospf database
>
> OSPF Router with ID ( 183.1.0.4) (Process ID 1)
>
> Router Link States (Area 0)
>
> Link ID ADV RouterAge Seq# Checksum Link
> count
> 183.1.0.2 183.1.0.2 427 0x80000010 0x4A1C 3
> 183.1.0.3 183.1.0.3 14440x80000007 0xDD56 2
> 183.1.0.4 183.1.0.4 232 0x80000013 0xEE87 2
>
> Summary Net Link States (Area 0)
>
> Link ID ADV RouterAge Seq# Checksum
> 3.3.3.3 183.1.0.3 17010x80000002 0x77FB
> 183.1.42.0183.1.0.2 427 0x8000000B 0xBD69
> 183.1.42.0183.1.0.4 14800x80000009 0x4014
>
> Summary ASB Link States (Area 0)
>
> Link ID ADV RouterAge Seq# Checksum
> 183.1.0.2 183.1.0.4 19440x80000004 0xF788
> 183.1.0.4 183.1.0.2 179 0x80000004 0x65ED
>
> Router Link States (Area 3)
>
> Link ID ADV RouterAge Seq# Checksum Link
> count
> 183.1.0.2 183.1.0.2 510x8000000A 0x66CA 2
> 183.1.0.4 183.1.0.4 530x8000000B 0xB8C9 2
>
> Net Link States (Area 3)
>
> Link ID ADV RouterAge Seq# Checksum
> 183.1.42.2 183.1.0.2 510x80000001 0x1D06
> 183.1.42.4 183.1.0.4 959 0x80000005 0xEC2E
>
> Summary Net Link States (Area 3)
>
> Link ID ADV RouterAge Seq# Checksum
> 3.3.3.3 183.1.0.2 16910x80000002 0xFF34
> 3.3.3.3 183.1.0.4 228 0x80000004 0x2321
> 183.1.0.2 183.1.0.2 11940x80000004 0x853F
> 183.1.0.2 183.1.0.4 228 0x80000004 0xAD29
> 183.1.0.3 183.1.0.2 11940x80000004 0xFD85
> 183.1.0.3 183.1.0.4 228 0x80000004 0x2570
> 183.1.0.4 183.1.0.2 429 0x80000002 0xF78C
> 183.1.0.4 183.1.0.4 14820x80000002 0x6959
>
> Summary ASB Link States (Area 3)
>
> Link ID ADV RouterAge Seq# Checksum
> 183.1.0.2 183.1.0.4 228 0x80000004 0x9F36
> 183.1.0.4 183.1.0.2 429 0x80000002 0xE999
>
> Type-5 AS External Link States
>
> Link ID ADV RouterAge Seq# Checksum Tag
> 2.2.2.0 183.1.0.2 429 0x80000004 0x10CC 0
> 4.4.4.4 183.1.0.4 214 0x80000004 0x933D 0
>
> Thanks !!!!
>
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This archive was generated by hypermail 2.1.4 : Mon Jan 09 2006 - 07:07:52 GMT-3