From: Larry Letterman (lletterm@cisco.com)
Date: Tue Jan 06 2004 - 23:30:55 GMT-3
The paths are not equal..ethernet is 10M and TR is 16(guessing).
If the nics were the same, then the composite metric would equal,
And you would have two equal paths to load balance thru..
Larry Letterman
Cisco Systems
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
Charles T. Alexander
Sent: Tuesday, January 06, 2004 6:21 PM
To: ccielab@groupstudy.com
Subject: EIGRP Dual Paths
I have an EIGRP domain.
r6 ---serial-------- r9
| |
ethernet ethernet
| |
r7 ---token ring ---r8
I can ping all around. The route table showes r7 to r9 through token
ring. If I shut the token ring I can ping r9 the other way.
However the route table doesn't show two paths from r7 to r9. I don't
understand why not.
r7#i
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
137.10.0.0/16 is variably subnetted, 5 subnets, 4 masks
C 137.10.7.0/24 is directly connected, Loopback0
D 137.10.69.0/28 [90/2195456] via 137.10.74.6, 00:34:38,
Ethernet0/0
C 137.10.74.0/26 is directly connected, Ethernet0/0
C 137.10.78.0/25 is directly connected, TokenRing0/0
D 137.10.98.0/24 [90/297728] via 137.10.78.8, 00:34:38,
TokenRing0/0
D EX 192.177.0.0/24 [170/425728] via 137.10.78.8, 00:29:24, TokenRing0/0
D EX 192.177.1.0/24 [170/425728] via 137.10.78.8, 00:29:25, TokenRing0/0
D EX 192.177.2.0/24 [170/425728] via 137.10.78.8, 00:29:25, TokenRing0/0
D EX 192.177.3.0/24 [170/425728] via 137.10.78.8, 00:29:25, TokenRing0/0
r7#
--------------------
r6#r
Building configuration...
Current configuration : 2328 bytes
!
version 12.2
service timestamps debug uptime
service timestamps log uptime
no service password-encryption
no service single-slot-reload-enable
!
hostname r6
!
logging buffered 10000 debugging
enable password radnor
!
ip subnet-zero
no ip domain-lookup
!
ip cef
ip audit notify log
ip audit po max-events 100
!
!
key chain cta_vlanc
key 1
key-string cta_vlanc
key chain cta_r69
key 1
key-string cta_r69
call rsvp-sync
!
!
!
!
!
!
!
!
interface Loopback0
ip address 137.10.6.6 255.255.255.0
ip router isis
!
interface Ethernet0/0
ip address 137.10.74.6 255.255.255.192
!
interface Ethernet0/1
no ip address
shutdown
!
interface Ethernet0/2
no ip address
shutdown
!
interface Ethernet0/3
no ip address
shutdown
!
interface Serial1/0
ip address 137.10.100.6 255.255.255.224
ip router isis
encapsulation frame-relay
serial restart-delay 0
frame-relay map clns 604 broadcast
frame-relay map ip 137.10.100.2 604 broadcast
frame-relay map ip 137.10.100.4 604 broadcast
frame-relay map ip 137.10.100.6 604
no frame-relay inverse-arp
frame-relay lmi-type ansi
!
interface Serial1/1
bandwidth 1544
ip address 137.10.69.6 255.255.255.240
serial restart-delay 0
!
interface Serial1/2
no ip address
shutdown
serial restart-delay 0
!
interface Serial1/3
no ip address
shutdown
serial restart-delay 0
!
interface ATM2/0
description 2 24 12 2
bandwidth 149760
no ip address
shutdown
atm ilmi-keepalive
pvc 0/5 qsaal
!
pvc 0/16 ilmi
!
!
interface ATM2/0.1 multipoint
ip address 137.11.69.6 255.255.255.240
atm esi-address 666666666666.00
!
svc 100000000000000
protocol ip 137.11.69.6
encapsulation aal5snap
idle-timeout 10
!
!
svc nsap 10.000000000000000000000000.999999999999.00
protocol ip 137.11.69.9 broadcast
encapsulation aal5snap
idle-timeout 10
!
!
router eigrp 100
network 137.10.69.0 0.0.0.15
network 137.10.74.0 0.0.0.63
no auto-summary
!
router isis
net 49.0426.6666.6666.6666.00
!
ip classless
no ip http server
!
!
!
alias exec i show ip route
alias exec r show run
alias exec c config t
alias exec u undebug all
alias exec b show ip bgp
alias exec bs show ip bgp sum
alias exec s show ip int brief
alias exec w write
!
line con 0
exec-timeout 0 0
logging synchronous
escape-character 27
line aux 0
line vty 0 4
exec-timeout 0 0
password bp
login
!
end
r6#
----------------------
r7#r
Building configuration...
Current configuration : 1160 bytes
!
version 12.1
no service single-slot-reload-enable
service timestamps debug uptime
service timestamps log uptime
no service password-encryption
!
hostname r7
!
logging buffered 10000 debugging
enable password radnor
!
!
!
!
!
ip subnet-zero
no ip domain-lookup
!
!
key chain cta_vlanc
key 1
key-string cta_vlanc
key chain cta_r78
key 1
key-string cta_r78
!
!
voice-port 1/0/0
!
voice-port 1/0/1
!
!
!
!
interface Loopback0
ip address 137.10.7.7 255.255.255.0
!
interface BRI0/0
no ip address
shutdown
!
interface Ethernet0/0
ip address 137.10.74.7 255.255.255.192
!
interface TokenRing0/0
ip address 137.10.78.7 255.255.255.128
ring-speed 16
!
router eigrp 100
network 137.10.74.0 0.0.0.63
network 137.10.78.0 0.0.0.127
no auto-summary
no eigrp log-neighbor-changes
!
ip classless
ip http server
!
!
alias exec i show ip route
alias exec r show run
alias exec c config t
alias exec u undebug all
alias exec b show ip bgp
alias exec bs show ip bgp sum
alias exec s show ip int brief
alias exec w write
!
line con 0
exec-timeout 0 0
logging synchronous
escape-character 27
line aux 0
line vty 0 4
exec-timeout 0 0
password bp
login
!
end
r7#
--------------------
r8#r
Building configuration...
Current configuration : 1292 bytes
!
version 12.2
no service single-slot-reload-enable
service timestamps debug uptime
service timestamps log uptime
no service password-encryption
!
hostname r8
!
logging buffered 10000 debugging
logging rate-limit console 10 except errors
enable password radnor
!
ip subnet-zero
no ip finger
no ip domain-lookup
ip host bb2 137.10.98.100
!
no ip dhcp-client network-discovery
!
key chain cta_r78
key 1
key-string cta_r78
!
!
!
!
interface Loopback0
ip address 137.10.8.8 255.255.255.0
!
interface Ethernet0
ip address 137.10.98.8 255.255.255.0
!
interface Serial0
no ip address
shutdown
no fair-queue
!
interface Serial1
no ip address
shutdown
!
interface TokenRing0
ip address 137.10.78.8 255.255.255.128
ring-speed 16
!
router eigrp 100
network 137.10.78.0 0.0.0.127
network 137.10.98.0 0.0.0.255
no auto-summary
no eigrp log-neighbor-changes
!
ip kerberos source-interface any
ip classless
ip http server
!
!
alias exec i show ip route
alias exec r show run
alias exec c config t
alias exec u undebug all
alias exec b show ip bgp
alias exec bs show ip bgp sum
alias exec s show ip int brief
alias exec w write
!
line con 0
exec-timeout 0 0
logging synchronous
transport input none
escape-character 27
line aux 0
line vty 0 4
exec-timeout 0 0
password bp
login
!
end
r8#
------------------
r9#r
Building configuration...
Current configuration : 1237 bytes
!
version 12.2
no service single-slot-reload-enable
service timestamps debug uptime
service timestamps log uptime
no service password-encryption
!
hostname r9
!
logging buffered 10000 debugging
logging rate-limit console 10 except errors
enable password radnor
!
ip subnet-zero
no ip finger
no ip domain-lookup
!
no ip dhcp-client network-discovery
!
key chain cta_r69
key 1
key-string cta_r69
!
!
!
!
interface Loopback0
ip address 137.10.9.9 255.255.255.0
!
interface Ethernet0
ip address 137.10.98.9 255.255.255.0
!
interface Serial0
bandwidth 1544
ip address 137.10.69.9 255.255.255.240
no fair-queue
clockrate 2000000
!
interface Serial1
no ip address
shutdown
!
router eigrp 100
network 137.10.69.0 0.0.0.15
network 137.10.98.0 0.0.0.255
no auto-summary
no eigrp log-neighbor-changes
!
ip kerberos source-interface any
ip classless
ip http server
!
!
alias exec i show ip route
alias exec r show run
alias exec c config t
alias exec u undebug all
alias exec b show ip bgp
alias exec bs show ip bgp sum
alias exec s show ip int brief
alias exec w write
!
line con 0
exec-timeout 0 0
logging synchronous
transport input none
escape-character 27
line aux 0
line vty 0 4
exec-timeout 0 0
password bp
login
!
end
r9#
This archive was generated by hypermail 2.1.4 : Mon Feb 02 2004 - 09:07:37 GMT-3