From: Brian Dennis (brian@labforge.com)
Date: Tue Apr 01 2003 - 23:05:29 GMT-3
Jason,
Are the spokes configured as broadcast (OSPF network type broadcast)? I
see that you've changed the hello interval on R3 (hub) to 10 seconds
which would match the broadcast network hello interval.
As far as your question relating to the "broadcast" keyword for the
Frame-relay maps goes, it doesn't change the default OSPF network type.
Also as a side note one of the spokes is a BDR. A spoke should never be
a DR or BDR in a true hub and spoke network. Make sure you always set
the spoke's OSPF priority to 0.
Brian Dennis, CCIE #2210 (R&S/ISP-Dial/Security)
Director of CCIE Training and Development - IPexpert, Inc.
Mailto: brian@ipexpert.net
Toll Free: 866.225.8064
Outside U.S. & Canada: 312.321.6924
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
Jason Cash
Sent: Tuesday, April 01, 2003 3:51 PM
To: ccielab@groupstudy.com
Subject: OSPF NBMA -without neighbors-
Well, my other post never went thru, so here goes again:
I have three routers connected via FR interfaces (main intf). The OSPF
mode is non-broadcast, I have no neighbors defined, but adjacencies are
forming:
R3 (s1)
/ \
/ \
R2 (s0) / \R5 (s1)
r3#sh ip ospf int s1
Serial1 is up, line protocol is up
Internet Address 140.4.1.3/28, Area 1
Process ID 1, Router ID 140.4.30.1, Network Type NON_BROADCAST, Cost:
323
Transmit Delay is 1 sec, State DR, Priority 100
Designated Router (ID) 140.4.30.1, Interface address 140.4.1.3
Backup Designated router (ID) 140.4.20.1, Interface address 140.4.1.2
Timer intervals configured, Hello 10, Dead 40, Wait 40, Retransmit 5
Hello due in 00:00:00
Index 1/2, flood queue length 0
Next 0x0(0)/0x0(0)
Last flood scan length is 0, maximum is 7
Last flood scan time is 0 msec, maximum is 12 msec
Neighbor Count is 2, Adjacent neighbor count is 2
Adjacent with neighbor 140.4.5.1
Adjacent with neighbor 140.4.20.1 (Backup Designated Router)
Suppress hello for 0 neighbor(s)
Message digest authentication enabled
Youngest key id is 1
r3#sh ip ospf nei
Neighbor ID Pri State Dead Time Address
Interface
140.4.6.1 1 FULL/BDR 00:00:38 140.4.4.6
Ethernet0
140.4.4.13 1 FULL/DROTHER 00:00:33 140.4.4.13
Ethernet0
R5 140.4.5.1 1 FULL/DROTHER 00:00:31 140.4.1.5 Serial1
R2 140.4.20.1 1 FULL/BDR 00:00:38 140.4.1.2 Serial1
r3#sh run
hostname r3
!
interface Loopback1
description Token Ring0
ip address 140.4.30.1 255.255.255.128
ip ospf network point-to-point
!
interface Serial1
ip address 140.4.1.3 255.255.255.240
encapsulation frame-relay
ip ospf authentication message-digest
ip ospf message-digest-key 1 md5 cisco
ip ospf hello-interval 10
ip ospf priority 100
frame-relay map ip 140.4.1.2 302 broadcast
frame-relay map ip 140.4.1.5 305 broadcast
no frame-relay inverse-arp
!
router ospf 1
log-adjacency-changes
auto-cost reference-bandwidth 500
area 0 authentication message-digest
area 1 virtual-link 140.4.20.1
area 1 virtual-link 140.4.5.1
network 140.4.1.0 0.0.0.15 area 1
network 140.4.3.0 0.0.0.255 area 1
network 140.4.4.0 0.0.0.127 area 0
network 140.4.30.0 0.0.0.127 area 30
There are no neighbor statements. Does the 'broadcast' statement at the
end of the 'fr map' make the medium a broadcast and thus change the
network type? Does this negate the need for static neighbors?
This archive was generated by hypermail 2.1.4 : Thu May 01 2003 - 13:35:45 GMT-3