From: G. R. Correia (razzolini80@hotmail.com)
Date: Sat Apr 26 2003 - 11:43:02 GMT-3
Hi Kym
Regarding combination 4, MAIN INT (R2,R4) AND MULTIPOINT (R3): I believe
there is an error on R3 dlci's , that's why it did not work for you.
Check below:
R4# (MAIN INTERFACE)
interface Serial1
ip address 155.3.45.4 255.255.255.0
ip router isis
encapsulation frame-relay
frame-relay map clns 405 broadcast
frame-relay map ip 155.3.45.5 405 broadcast
!
router isis
net 50.0001.1122.3344.5566.00
is-type level-2-only
R4#sh clns is-ne
System Id Interface State Type Priority Circuit Id Format
0011.2233.4455 Se1 Up L2 64 1122.3344.5566.0Phase V
R4#sir
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, * - candidate
default
U - per-user static route, o - ODR
Gateway of last resort is not set
C 200.200.0.0/24 is directly connected, Loopback200
151.30.0.0/18 is subnetted, 1 subnets
i L2 151.30.0.0 [115/158] via 155.3.45.5, Serial1
135.3.0.0/16 is variably subnetted, 13 subnets, 3 masks
i L2 155.3.235.0/27 [115/158] via 155.3.45.5, Serial1
C 155.3.4.0/24 is directly connected, Loopback0
i L2 155.3.5.0/24 [115/158] via 155.3.45.5, Serial1
i L2 155.3.2.2/32 [115/158] via 155.3.45.5, Serial1
i L2 155.3.3.3/32 [115/158] via 155.3.45.5, Serial1
i L2 155.3.6.6/32 [115/158] via 155.3.45.5, Serial1
i L2 155.3.1.0/24 [115/158] via 155.3.45.5, Serial1
i L2 155.3.2.0/24 [115/158] via 155.3.45.5, Serial1
i L2 155.3.12.0/24 [115/158] via 155.3.45.5, Serial1
i L2 155.3.23.0/24 [115/158] via 155.3.45.5, Serial1
C 155.3.45.0/24 is directly connected, Serial1
i L2 155.3.56.0/24 [115/158] via 155.3.45.5, Serial1
i L2 155.3.66.6/32 [115/158] via 155.3.45.5, Serial1
R5#(MULTIPOINT)
interface Serial0.1 multipoint
ip address 155.3.45.5 255.255.255.0
ip router isis
frame-relay map clns 504 broadcast
frame-relay map ip 155.3.45.4 504 broadcast
router isis
redistribute ospf 300 metric 20 metric-type external level-2
net 50.0001.0011.2233.4455.00
is-type level-2-only
R5#sh clns is-ne
System Id Interface State Type Priority Circuit Id Format
1122.3344.5566 Se0.1 Up L2 64 1122.3344.5566.0Phase V
R5#sir
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, * - candidate
default
U - per-user static route, o - ODR
Gateway of last resort is not set
B 200.200.0.0/24 [200/0] via 135.3.4.4, 00:33:39
151.30.0.0/18 is subnetted, 1 subnets
O E2 151.30.0.0 [110/20] via 155.3.235.2, 00:32:42, Serial0.2
155.3.0.0/16 is variably subnetted, 15 subnets, 4 masks
C 155.3.235.0/27 is directly connected, Serial0.2
i L2 155.3.4.0/24 [115/20] via 155.3.45.4, Serial0.1
C 155.3.5.0/24 is directly connected, Loopback0
O 155.3.3.3/32 [110/65] via 155.3.235.3, 00:32:52, Serial0.2
O 155.3.2.2/32 [110/65] via 155.3.235.2, 00:32:52, Serial0.2
O 155.3.6.6/32 [110/65] via 155.3.56.6, 00:34:57, Serial1
O E2 155.3.1.0/24 [110/20] via 155.3.235.2, 00:32:42, Serial0.2
O E2 155.3.2.0/24 [110/20] via 155.3.235.2, 00:32:42, Serial0.2
O E2 155.3.12.0/24 [110/20] via 155.3.235.2, 00:32:42, Serial0.2
O IA 155.3.23.0/24 [110/74] via 155.3.235.2, 00:32:42, Serial0.2
[110/74] via 155.3.235.3, 00:32:42, Serial0.2
C 155.3.35.4/30 is directly connected, Async1
C 155.3.45.0/24 is directly connected, Serial0.1
C 155.3.55.0/24 is directly connected, Ethernet0
C 155.3.56.0/24 is directly connected, Serial1
O IA 155.3.66.6/32 [110/65] via 155.3.56.6, 00:32:44, Serial1
HTH
Guilherme
>From: "kym blair" <kymblair@hotmail.com>
>Reply-To: "kym blair" <kymblair@hotmail.com>
>To: kasturi_cisco@hotmail.com, clarson52@comcast.net,
>efisher@optonline.net, ccielab@groupstudy.com
>Subject: Re: Router ISIS -- results found
>Date: Sat, 26 Apr 2003 07:52:10 +0000
>
>Kasturi,
>
>You are correct ... CLNS MAP statement is not needed for point-to-point
>subinterface (uses inverse-arp). Several people asked about various
>combinations of interfaces. Here is a longer explanation.
>
>POINT-TO-POINT -- you can build full-mesh or hub-and-spoke topologies using
>point-to-point, but each link will require its own address space. The rest
>of this discussion assumes full-mesh/hub-and-spoke using one subnet.
>
>FULL-MESH -- works if all routers are using main interface
> (requires CLNS MAP statements)
>
>FULL-MESH -- works if all routers are using multipoint subinterface
> (requires CLNS MAP statements)
>
>FULL-MESH -- some routers using main interface, some multipoint = FAIL
>
>HUB-AND-SPOKE using main interface doesn't work (hub forms neighbor
>relationships with both spokes, but drops all routes except for one spoke)
>
>HUB-AND-SPOKE using multipoint subinterface doesn't work (hub forms
>neighbor relationships with both spokes, but drops all routes except for
>one spoke)
>
>
>==============================================
>IF YOU WANT TO SEE ALL THE CONFIGS AND DETAILS:
>
>
>BASIC SETUP:
>
>hostname R2
>!
>interface Loopback0
>ip address 150.1.2.2 255.255.255.0
>ip router isis
>!
>router isis
>net 47.0234.2222.2222.2222.00
>is-type level-1
>
>hostname R3
>!
>interface Loopback0
>ip address 150.1.3.3 255.255.255.0
>ip router isis
>!
>router isis
>net 47.0234.3333.3333.3333.00
>is-type level-1
>
>hostname R4
>!
>interface Loopback0
>ip address 150.1.4.4 255.255.255.0
>ip router isis
>!
>router isis
>net 47.0234.4444.4444.4444.00
>is-type level-1
>
>==================================================
>
>(1A) HUB-AND-SPOKE USING MULTIPOINT SUBINT (FAILS)
>
>hostname R2
>!
>interface Serial0
>no ip address
>encapsulation frame-relay
>!
>interface Serial0.234 multipoint
>ip address 150.1.234.2 255.255.255.0
>ip router isis
>frame-relay map clns 203 broadcast
>frame-relay map ip 150.1.234.2 203 broadcast
>frame-relay map ip 150.1.234.3 203 broadcast
>frame-relay map ip 150.1.234.4 203 broadcast
>no frame-relay inverse-arp
>
>hostname R3
>!
>interface Serial0
>no ip address
>encapsulation frame-relay
>!
>interface Serial0.234 multipoint
>ip address 150.1.234.3 255.255.255.0
>ip router isis
>frame-relay map clns 304 broadcast
>frame-relay map clns 302 broadcast
>frame-relay map ip 150.1.234.2 302 broadcast
>frame-relay map ip 150.1.234.3 302 broadcast
>frame-relay map ip 150.1.234.4 304 broadcast
>no frame-relay inverse-arp
>
>hostname R4
>!
>interface Serial0
>no ip address
>encapsulation frame-relay
>!
>interface Serial0.234 multipoint
>ip address 150.1.234.4 255.255.255.0
>ip router isis
>frame-relay map clns 403 broadcast
>frame-relay map ip 150.1.234.2 403 broadcast
>frame-relay map ip 150.1.234.3 403 broadcast
>frame-relay map ip 150.1.234.4 403 broadcast
>no frame-relay inverse-arp
>
>RELOAD R2 and R3, WAIT 20 SEC., RELOAD R4 -----
>WATCH R3 ... AT FIRST, R2 NEIGHBOR OKAY:
>R3#sh clns is-n
>R2 Se0.234 Up L1 64 R3.02 Phase V
>R3#sh ip route
>C 150.1.234.0 is directly connected, Serial0.234
>C 150.1.3.0 is directly connected, Loopback0
>i L1 150.1.2.0 [115/20] via 150.1.234.2, Serial0.234
>
>BUT AFTER R4 COMES UP (R2 NEI SHOWN, BUT NO ROUTES):
>R3#sh clns is-n
>R2 Se0.234 Up L1 64 R4.02 Phase V
>R4 Se0.234 Up L1 64 R4.02 Phase V
>R3#sh ip route
>C 150.1.234.0 is directly connected, Serial0.234
>i L1 150.1.4.0 [115/20] via 150.1.234.4, Serial0.234
>C 150.1.3.0 is directly connected, Loopback0
>
>=============================================
>(1A) HUB-AND-SPOKE USING MAIN INT (FAILS)
>
>hostname R2
>!
>interface Serial0
>encapsulation frame-relay
>ip address 150.1.234.2 255.255.255.0
>ip router isis
>frame-relay map clns 203 broadcast
>frame-relay map ip 150.1.234.2 203 broadcast
>frame-relay map ip 150.1.234.3 203 broadcast
>frame-relay map ip 150.1.234.4 203 broadcast
>no frame-relay inverse-arp
>
>hostname R3
>!
>interface Serial0
>encapsulation frame-relay
>ip address 150.1.234.3 255.255.255.0
>ip router isis
>frame-relay map clns 304 broadcast
>frame-relay map clns 302 broadcast
>frame-relay map ip 150.1.234.2 302 broadcast
>frame-relay map ip 150.1.234.3 302 broadcast
>frame-relay map ip 150.1.234.4 304 broadcast
>no frame-relay inverse-arp
>
>hostname R4
>!
>interface Serial0
>encapsulation frame-relay
>ip address 150.1.234.4 255.255.255.0
>ip router isis
>frame-relay map clns 403 broadcast
>frame-relay map ip 150.1.234.2 403 broadcast
>frame-relay map ip 150.1.234.3 403 broadcast
>frame-relay map ip 150.1.234.4 403 broadcast
>no frame-relay inverse-arp
>
>RESULT -- at first, R3 sees R2 routes, but once R4 neighbors up,
>R3 only sees R4 routes:
>
>R3#sh clns nei
>R2 Se0 DLCI 302 Up 22 L1 IS-IS
>R4 Se0 DLCI 304 Up 9 L1 IS-IS
>R3#sh ip route
>C 150.1.234.0 is directly connected, Serial0
>i L1 150.1.4.0 [115/20] via 150.1.234.4, Serial0
>C 150.1.3.0 is directly connected, Loopback0
>
>
>============================================================
>
>(2A) FULL-MESH USING MULTIPOINT SUBINT WITH MAP STMTS: (WORKS)
>
>hostname R2
>!
>interface Serial0.234 multipoint
>ip address 150.1.234.2 255.255.255.0
>ip router isis
>frame-relay map clns 204 broadcast
>frame-relay map clns 203 broadcast
>frame-relay map ip 150.1.234.2 203 broadcast
>frame-relay map ip 150.1.234.3 203 broadcast
>frame-relay map ip 150.1.234.4 204 broadcast
>no frame-relay inverse-arp
>
>hostname R3
>!
>interface Serial0.234 multipoint
>ip address 150.1.234.3 255.255.255.0
>ip router isis
>frame-relay map clns 304 broadcast
>frame-relay map clns 302 broadcast
>frame-relay map ip 150.1.234.2 302 broadcast
>frame-relay map ip 150.1.234.3 302 broadcast
>frame-relay map ip 150.1.234.4 304 broadcast
>no frame-relay inverse-arp
>
>hostname R4
>!
>interface Serial0.234 multipoint
>ip address 150.1.234.4 255.255.255.0
>ip router isis
>frame-relay map clns 402 broadcast
>frame-relay map clns 403 broadcast
>frame-relay map ip 150.1.234.2 403 broadcast
>frame-relay map ip 150.1.234.3 403 broadcast
>frame-relay map ip 150.1.234.4 402 broadcast
>no frame-relay inverse-arp
>
>
>RESULTS -- R2, R3, R4 ALL GOOD:
>
>R3#sh clns is
>R2 Se0.234 Up L1 64 R4.02 Phase V
>R4 Se0.234 Up L1 64 R4.02 Phase V
>R3#sh ip route
>C 150.1.234.0 is directly connected, Serial0.234
>i L1 150.1.4.0 [115/20] via 150.1.234.4, Serial0.234
>C 150.1.3.0 is directly connected, Loopback0
>i L1 150.1.2.0 [115/20] via 150.1.234.2, Serial0.234
>
>==============================================================
>(2B) -- REMOVE ANY CLNS MAP, AND THAT LINK FAILS:
>(LEARNS THE NEIGHBORS, BUT NO EXCHANGE OF ROUTES):
>
>hostname R3
>!
>interface Serial0.234 multipoint
>ip address 150.1.234.3 255.255.255.0
>ip router isis
>frame-relay map ip 150.1.234.2 302 broadcast
>frame-relay map ip 150.1.234.3 302 broadcast
>frame-relay map ip 150.1.234.4 304 broadcast
>no frame-relay inverse-arp
>
>R3#sh clns is
>R2 Se0.234 Init L1 128 R4.02 Phase V
>R4 Se0.234 Init L1 128 R4.02 Phase V
>R3#sh ip route
>C 150.1.234.0 is directly connected, Serial0.234
>C 150.1.3.0 is directly connected, Loopback0
>R3#
>00:28:14: ISIS-Adj: Encapsulation failed for L1 LAN IIH on Serial0.234
>
>==================================================================
>(3A) ISIS ON MAIN INTERFACES, WITH MAP STATMENTS: (WORKS)
>
>hostname R2
>!
>interface Serial0
>encapsulation frame-relay
>ip address 150.1.234.2 255.255.255.0
>ip router isis
>frame-relay map clns 204 broadcast
>frame-relay map clns 203 broadcast
>frame-relay map ip 150.1.234.2 203 broadcast
>frame-relay map ip 150.1.234.3 203 broadcast
>frame-relay map ip 150.1.234.4 204 broadcast
>no frame-relay inverse-arp
>
>hostname R3
>!
>interface Serial0
>no ip address
>encapsulation frame-relay
>ip address 150.1.234.3 255.255.255.0
>ip router isis
>frame-relay map clns 304 broadcast
>frame-relay map clns 302 broadcast
>frame-relay map ip 150.1.234.2 302 broadcast
>frame-relay map ip 150.1.234.3 302 broadcast
>frame-relay map ip 150.1.234.4 304 broadcast
>no frame-relay inverse-arp
>
>hostname R4
>!
>interface Serial0
>no ip address
>encapsulation frame-relay
>ip address 150.1.234.4 255.255.255.0
>ip router isis
>frame-relay map clns 402 broadcast
>frame-relay map clns 403 broadcast
>frame-relay map ip 150.1.234.2 403 broadcast
>frame-relay map ip 150.1.234.3 403 broadcast
>frame-relay map ip 150.1.234.4 402 broadcast
>no frame-relay inverse-arp
>
>
>RESULTS (R2, R3, R4 WORK FINE):
>
>R3#sh clns nei
>R2 Se0 DLCI 302 Up 24 L1 IS-IS
>R4 Se0 DLCI 304 Up 7 L1 IS-IS
>R3#sh ip route
>C 150.1.234.0 is directly connected, Serial0
>i L1 150.1.4.0 [115/20] via 150.1.234.4, Serial0
>C 150.1.3.0 is directly connected, Loopback0
>i L1 150.1.2.0 [115/20] via 150.1.234.2, Serial0
>===============================================================
>(3A) ISIS ON MAIN INTERFACES, WITHOUT MAP STATMENTS: (ENCAP FAILS)
>
>interface Serial0
>ip address 150.1.234.3 255.255.255.0
>ip router isis
>encapsulation frame-relay
>frame-relay map ip 150.1.234.2 302 broadcast
>frame-relay map ip 150.1.234.3 302 broadcast
>frame-relay map ip 150.1.234.4 304 broadcast
>
>R3#debug isis adj
>00:00:43: ISIS-Adj: Encapsulation failed for L1 LAN IIH on Serial0
>
>===================================================================
>(4) COMBINATION MAIN INT (R2,R4) AND MULTIPOINT (R3): (FAILS)
>
>hostname R2
>!
>interface Serial0
>ip address 150.1.234.2 255.255.255.0
>ip router isis
>encapsulation frame-relay
>frame-relay map clns 204 broadcast
>frame-relay map clns 203 broadcast
>frame-relay map ip 150.1.234.2 203 broadcast
>frame-relay map ip 150.1.234.3 203 broadcast
>frame-relay map ip 150.1.234.4 204 broadcast
>no frame-relay inverse-arp
>
>hostname R3
>!
>interface Serial0
>no ip address
>encapsulation frame-relay
>!
>interface Serial0.234 multipoint
>ip address 150.1.234.2 255.255.255.0
>ip router isis
>frame-relay map clns 203 broadcast
>frame-relay map clns 204 broadcast
>frame-relay map ip 150.1.234.2 203 broadcast
>frame-relay map ip 150.1.234.3 203 broadcast
>frame-relay map ip 150.1.234.4 204 broadcast
>no frame-relay inverse-arp
>
>hostname R4
>!
>interface Serial0
>ip address 150.1.234.4 255.255.255.0
>ip router isis
>encapsulation frame-relay
>frame-relay map clns 402 broadcast
>frame-relay map clns 403 broadcast
>frame-relay map ip 150.1.234.2 403 broadcast
>frame-relay map ip 150.1.234.3 403 broadcast
>frame-relay map ip 150.1.234.4 402 broadcast
>no frame-relay inverse-arp
>
>RESULTS -- R2/R4 ARE OKAY, BUT NOT R3:
>
>R2#sh clns nei
>R4 Se0 DLCI 204 Up 7 L1 IS-IS
>R2#sh ip route
> 150.1.0.0/24 is subnetted, 3 subnets
>C 150.1.234.0 is directly connected, Serial0
>i L1 150.1.4.0 [115/20] via 150.1.234.4, Serial0
>C 150.1.2.0 is directly connected, Loopback0
>
>=================================================================
>
>(5) POINT-TO-POINT:
>
>hostname R2
>!
>interface Serial0
>no ip address
>encapsulation frame-relay
>!
>interface Serial0.23 point-to-point
>ip address 150.1.23.2 255.255.255.0
>ip router isis
>frame-relay interface-dlci 203
>!
>interface Serial0.24 point-to-point
>ip address 150.1.24.2 255.255.255.0
>ip router isis
>frame-relay interface-dlci 204
>
>hostname R3
>!
>interface Serial0
>no ip address
>encapsulation frame-relay
>!
>interface Serial0.23 point-to-point
>ip address 150.1.23.3 255.255.255.0
>ip router isis
>frame-relay interface-dlci 302
>!
>interface Serial0.34 point-to-point
>ip address 150.1.34.3 255.255.255.0
>ip router isis
>frame-relay interface-dlci 304
>
>hostname R4
>!
>interface Serial0
>no ip address
>encapsulation frame-relay
>!
>interface Serial0.24 point-to-point
>ip address 150.1.24.4 255.255.255.0
>ip router isis
>frame-relay interface-dlci 402
>!
>interface Serial0.34 point-to-point
>ip address 150.1.34.4 255.255.255.0
>ip router isis
>frame-relay interface-dlci 403
>
>RESULTS: (all good)
>
>R3#sh clns nei
>R2 Se0.23 DLCI 302 Up 23 L1 IS-IS
>R4 Se0.34 DLCI 304 Up 28 L1 IS-IS
>R3#sh ip route
>C 150.1.23.0 is directly connected, Serial0.23
>i L1 150.1.24.0 [115/20] via 150.1.23.2, Serial0.23
> [115/20] via 150.1.34.4, Serial0.34
>i L1 150.1.4.0 [115/20] via 150.1.34.4, Serial0.34
>C 150.1.3.0 is directly connected, Loopback0
>i L1 150.1.2.0 [115/20] via 150.1.23.2, Serial0.23
>C 150.1.34.0 is directly connected, Serial0.34
>
>
>HTH, Kym
>=============================================================
>
>>From: "kasturi cisco" <kasturi_cisco@hotmail.com>
>>Reply-To: "kasturi cisco" <kasturi_cisco@hotmail.com>
>>To: clarson52@comcast.net, efisher@optonline.net, ccielab@groupstudy.com
>>Subject: Re: Router ISIS
>>Date: Sat, 26 Apr 2003 03:30:10 +0000
>>
>>Correct me if i am wrong, but i think the "frame-relay map clns" is only
>>needed for multipoint type links and for p2p "Frame-rlay map clns" is NOT
>>needed and only Fr map ip is needed.
>>
>>Good Luck,[IMAGE]
>>Kasturi.
>
>
>_________________________________________________________________
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This archive was generated by hypermail 2.1.4 : Thu May 01 2003 - 13:36:07 GMT-3