dq28121989
05.08.2011
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Offsetwerte bei eigrp

FrageNetzwerkeRouter, Routing
Gibt es richtlinien für Offsetwerte bei eigrp?

Hallo liebe Community,
ich habe folgendes Problem:
Ich arbeite mit GNS3 und übe gerade Offset-listen (und Konvergenzoptimierung allgemein). Nun habe ich versucht die Alternativrouten mit Hilfe von Offset-listen als Feasible Successor in die Topologietabelle zu bekommen, aber mit dem wert 1 oder 100 (im CCNP-Route Beispiel reichte der Wert 1) funktioniert es nicht. Erst nachdem ich z.B. 1025000 eintrage funktioniert es. Wenn ich anschließend überprüfe ob der Wert 100 wirklich nicht funktioniert finde ich aber die Route immernoch in der Topologietabelle!

Nun bin ich verwirrt und stelle mir folgende Fragen:
1. Hat GNS3 einen Bug indem er bei kleineren Werten die Topologietabelle nicht umschreibt? oder
2. Ist die Route nach der 2. Änderung nur vorrübergehend in der Topologietabelle? oder
3. Muss es denn so gemacht werden?

Ich hoffe ihr könnt mir weiterhelfen.

LG dq
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Content-ID: 170981

Url: https://administrator.de/contentid/170981

Ausgedruckt am: 24.11.2024 um 04:11 Uhr

3 Kommentare
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brammer
brammer 05.08.2011 um 08:42:26 Uhr
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Hallo,

kannst du bitte mal die Ergebnisse von

show ip eigrp topology

show ip route

und ein

sh run | beg eigrp

posten?

brammer
dq28121989
dq28121989 05.08.2011 um 15:54:31 Uhr
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http://imageshack.us/f/651/topohe.jpg/ -> Topologie (Ich entschuldige mich für meine Formatierung)

ROUTER 1
Gateway of last resort is not set

172.1.0.0/16 is variably subnetted, 11 subnets, 2 masks
D 172.1.1.44/30 [90/2195456] via 172.1.1.17, 00:08:50, FastEthernet0/0
D 172.1.1.40/30 [90/2195456] via 172.1.1.17, 00:08:51, FastEthernet0/0
C 172.1.1.36/30 is directly connected, Serial0/2
C 172.1.1.48/30 is directly connected, Serial0/1
D 172.1.13.0/24 [90/2297856] via 172.1.1.50, 00:08:50, Serial0/1
D 172.1.1.12/30 [90/2195456] via 172.1.1.17, 00:08:50, FastEthernet0/0
D 172.1.14.0/24 [90/2297856] via 172.1.1.38, 00:24:27, Serial0/2
C 172.1.1.8/30 is directly connected, Serial0/0.102
D 172.1.1.4/30 [90/2195456] via 172.1.1.17, 00:08:54, FastEthernet0/0
C 172.1.1.0/30 is directly connected, Serial0/0.103
C 172.1.1.16/30 is directly connected, FastEthernet0/0
R01#
R01#show ip eigrp topology
IP-EIGRP Topology Table for AS(1)/ID(172.1.1.18)

Codes: P - Passive, A - Active, U - Update, Q - Query, R - Reply,
r - reply Status, s - sia Status

P 172.1.1.44/30, 1 successors, FD is 2195456
via 172.1.1.17 (2195456/2169856), FastEthernet0/0
via 172.1.1.38 (2681856/2169856), Serial0/2
P 172.1.1.40/30, 1 successors, FD is 2195456
via 172.1.1.17 (2195456/2169856), FastEthernet0/0
via 172.1.1.50 (2681856/2169856), Serial0/1
P 172.1.1.36/30, 1 successors, FD is 2169856
via Connected, Serial0/2
P 172.1.1.48/30, 1 successors, FD is 2169856
via Connected, Serial0/1
P 172.1.1.12/30, 1 successors, FD is 2195456
via 172.1.1.17 (2195456/2169856), FastEthernet0/0
P 172.1.13.0/24, 1 successors, FD is 2297856
via 172.1.1.50 (2297856/128256), Serial0/1 <----------
P 172.1.14.0/24, 1 successors, FD is 2297856
via 172.1.1.38 (2297856/128256), Serial0/2 <---------
P 172.1.1.8/30, 1 successors, FD is 2169856
via Connected, Serial0/0.102
P 172.1.1.4/30, 1 successors, FD is 2195456
via 172.1.1.17 (2195456/2169856), FastEthernet0/0
P 172.1.1.0/30, 1 successors, FD is 2169856
via Connected, Serial0/0.103
P 172.1.1.16/30, 1 successors, FD is 281600
via Connected, FastEthernet0/0

R01#show ip eigrp topology all-links
IP-EIGRP Topology Table for AS(1)/ID(172.1.1.18)

Codes: P - Passive, A - Active, U - Update, Q - Query, R - Reply,
r - reply Status, s - sia Status

P 172.1.1.44/30, 1 successors, FD is 2195456, serno 9
via 172.1.1.17 (2195456/2169856), FastEthernet0/0
via 172.1.1.50 (3193856/2681856), Serial0/1
via 172.1.1.38 (2681856/2169856), Serial0/2
P 172.1.1.40/30, 1 successors, FD is 2195456, serno 39
via 172.1.1.17 (2195456/2169856), FastEthernet0/0
via 172.1.1.38 (3193856/2681856), Serial0/2
via 172.1.1.50 (2681856/2169856), Serial0/1
P 172.1.1.36/30, 1 successors, FD is 2169856, serno 20
via Connected, Serial0/2
P 172.1.1.48/30, 1 successors, FD is 2169856, serno 16
via Connected, Serial0/1
P 172.1.1.12/30, 1 successors, FD is 2195456, serno 37
via 172.1.1.17 (2195456/2169856), FastEthernet0/0
via 172.1.1.50 (3193856/2681856), Serial0/1
via 172.1.1.38 (3193856/2681856), Serial0/2
P 172.1.13.0/24, 1 successors, FD is 2297856, serno 19
via 172.1.1.50 (2297856/128256), Serial0/1 <--------
via 172.1.1.17 (2323456/2297856), FastEthernet0/0 <--------
P 172.1.14.0/24, 1 successors, FD is 2297856, serno 23
via 172.1.1.38 (2297856/128256), Serial0/2 <---------
via 172.1.1.17 (2323456/2297856), FastEthernet0/0 <---------
P 172.1.1.8/30, 1 successors, FD is 2169856, serno 34
via Connected, Serial0/0.102
P 172.1.1.4/30, 1 successors, FD is 2195456, serno 36
via 172.1.1.17 (2195456/2169856), FastEthernet0/0
via 172.1.1.50 (3193856/2681856), Serial0/1
via 172.1.1.38 (3193856/2681856), Serial0/2
P 172.1.1.0/30, 1 successors, FD is 2169856, serno 35
via Connected, Serial0/0.103
P 172.1.1.16/30, 1 successors, FD is 281600, serno 6
via Connected, FastEthernet0/0

R01#
R01#show run
Building configuration...

Current configuration : 1505 bytes
!
version 12.4
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
!
hostname R01
!
boot-start-marker
boot-end-marker
!
!
no aaa new-model
memory-size iomem 5
ip cef
!
interface FastEthernet0/0
ip address 172.1.1.18 255.255.255.252
duplex auto
speed auto
!
interface Serial0/0
no ip address
encapsulation frame-relay
clock rate 2000000
!
interface Serial0/0.102 point-to-point
ip address 172.1.1.10 255.255.255.252
ip bandwidth-percent eigrp 1 25
ip hello-interval eigrp 1 2
ip hold-time eigrp 1 6
no ip split-horizon eigrp 1
frame-relay interface-dlci 102
!
interface Serial0/0.103 point-to-point
ip address 172.1.1.2 255.255.255.252
ip bandwidth-percent eigrp 1 25
ip hello-interval eigrp 1 2
ip hold-time eigrp 1 6
no ip split-horizon eigrp 1
frame-relay interface-dlci 103
!
interface FastEthernet0/1
no ip address
shutdown
duplex auto
speed auto
!
interface Serial0/1
ip address 172.1.1.49 255.255.255.252
ip hello-interval eigrp 1 2
ip hold-time eigrp 1 6
clock rate 2000000
!
interface Serial0/2
ip address 172.1.1.37 255.255.255.252
ip hello-interval eigrp 1 2
ip hold-time eigrp 1 6
clock rate 2000000
!
router eigrp 1
network 172.1.0.0
auto-summary
neighbor 172.1.1.9 Serial0/0.102
neighbor 172.1.1.1 Serial0/0.103
!
ip http server
no ip http secure-server
!
control-plane
!
!
line con 0
line aux 0
line vty 0 4
login
!
!
end

Router 2 folgt ...
dq28121989
dq28121989 05.08.2011 um 16:04:53 Uhr
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Router 2

172.1.0.0/16 is variably subnetted, 11 subnets, 2 masks
C 172.1.1.44/30 is directly connected, Serial0/2
C 172.1.1.40/30 is directly connected, Serial0/1
D 172.1.1.36/30 [90/2195456] via 172.1.1.18, 00:00:13, FastEthernet0/0
D 172.1.1.48/30 [90/2195456] via 172.1.1.18, 00:00:13, FastEthernet0/0
D 172.1.13.0/24 [90/2297856] via 172.1.1.42, 00:00:13, Serial0/1
C 172.1.1.12/30 is directly connected, Serial0/0.105
D 172.1.14.0/24 [90/2297856] via 172.1.1.46, 00:00:17, Serial0/2
D 172.1.1.8/30 [90/2195456] via 172.1.1.18, 00:00:17, FastEthernet0/0
C 172.1.1.4/30 is directly connected, Serial0/0.104
D 172.1.1.0/30 [90/2195456] via 172.1.1.18, 00:00:17, FastEthernet0/0
C 172.1.1.16/30 is directly connected, FastEthernet0/0

R02#show ip eigrp topology
P 172.1.1.44/30, 1 successors, FD is 2169856
via Connected, Serial0/2
P 172.1.1.40/30, 1 successors, FD is 2169856
via Connected, Serial0/1
P 172.1.1.36/30, 1 successors, FD is 2195456
via 172.1.1.18 (2195456/2169856), FastEthernet0/0
via 172.1.1.46 (2681856/2169856), Serial0/2
P 172.1.1.48/30, 1 successors, FD is 2195456
via 172.1.1.18 (2195456/2169856), FastEthernet0/0
via 172.1.1.42 (2681856/2169856), Serial0/1
P 172.1.1.12/30, 1 successors, FD is 2169856
via Connected, Serial0/0.105
P 172.1.13.0/24, 1 successors, FD is 2297856
via 172.1.1.42 (2297856/128256), Serial0/1 <-----------------------
P 172.1.14.0/24, 1 successors, FD is 2297856
via 172.1.1.46 (2297856/128256), Serial0/2 <-----------------------
P 172.1.1.8/30, 1 successors, FD is 2195456
via 172.1.1.18 (2195456/2169856), FastEthernet0/0
P 172.1.1.4/30, 1 successors, FD is 2169856
via Connected, Serial0/0.104
P 172.1.1.0/30, 1 successors, FD is 2195456
via 172.1.1.18 (2195456/2169856), FastEthernet0/0
P 172.1.1.16/30, 1 successors, FD is 281600
via Connected, FastEthernet0/0

R02#show ip eigrp topology all-links
IP-EIGRP Topology Table for AS(1)/ID(172.1.1.17)

Codes: P - Passive, A - Active, U - Update, Q - Query, R - Reply,
r - reply Status, s - sia Status

P 172.1.1.44/30, 1 successors, FD is 2169856, serno 37
via Connected, Serial0/2
P 172.1.1.40/30, 1 successors, FD is 2169856, serno 39
via Connected, Serial0/1
P 172.1.1.36/30, 1 successors, FD is 2195456, serno 20
via 172.1.1.18 (2195456/2169856), FastEthernet0/0
via 172.1.1.42 (3193856/2681856), Serial0/1
via 172.1.1.46 (2681856/2169856), Serial0/2
P 172.1.1.48/30, 1 successors, FD is 2195456, serno 16
via 172.1.1.18 (2195456/2169856), FastEthernet0/0
via 172.1.1.42 (2681856/2169856), Serial0/1
via 172.1.1.46 (3193856/2681856), Serial0/2
P 172.1.1.12/30, 1 successors, FD is 2169856, serno 36
via Connected, Serial0/0.105
P 172.1.13.0/24, 1 successors, FD is 2297856, serno 40
via 172.1.1.42 (2297856/128256), Serial0/1 <-------------------------------
via 172.1.1.18 (2323456/2297856), FastEthernet0/0 <-------------------------------
P 172.1.14.0/24, 1 successors, FD is 2297856, serno 15
via 172.1.1.46 (2297856/128256), Serial0/2 <-------------------------------
via 172.1.1.18 (2323456/2297856), FastEthernet0/0 <-------------------------------
P 172.1.1.8/30, 1 successors, FD is 2195456, serno 33
via 172.1.1.18 (2195456/2169856), FastEthernet0/0
via 172.1.1.42 (3193856/2681856), Serial0/1
via 172.1.1.46 (3193856/2681856), Serial0/2
P 172.1.1.4/30, 1 successors, FD is 2169856, serno 35
via Connected, Serial0/0.104
P 172.1.1.0/30, 1 successors, FD is 2195456, serno 34
via 172.1.1.18 (2195456/2169856), FastEthernet0/0
via 172.1.1.42 (3193856/2681856), Serial0/1
via 172.1.1.46 (3193856/2681856), Serial0/2
P 172.1.1.16/30, 1 successors, FD is 281600, serno 5
via Connected, FastEthernet0/0

R02#show run
Building configuration...

Current configuration : 1559 bytes
!
version 12.4
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
!
hostname R02
!
boot-start-marker
boot-end-marker
!
!
no aaa new-model
memory-size iomem 5
ip cef
!
!
interface FastEthernet0/0
ip address 172.1.1.17 255.255.255.252
ip hello-interval eigrp 1 2
ip hold-time eigrp 1 6
duplex auto
speed auto
!
interface Serial0/0
no ip address
encapsulation frame-relay
clock rate 2000000
!
interface Serial0/0.104 point-to-point
ip address 172.1.1.6 255.255.255.252
ip bandwidth-percent eigrp 1 25
ip hello-interval eigrp 1 2
ip hold-time eigrp 1 6
no ip split-horizon eigrp 1
frame-relay interface-dlci 104
!
interface Serial0/0.105 point-to-point
ip address 172.1.1.14 255.255.255.252
ip bandwidth-percent eigrp 1 25
ip hello-interval eigrp 1 2
ip hold-time eigrp 1 6
no ip split-horizon eigrp 1
frame-relay interface-dlci 105
!
interface FastEthernet0/1
no ip address
shutdown
duplex auto
speed auto
!
interface Serial0/1
ip address 172.1.1.41 255.255.255.252
ip hello-interval eigrp 1 2
ip hold-time eigrp 1 6
clock rate 2000000
!
interface Serial0/2
ip address 172.1.1.45 255.255.255.252
ip hello-interval eigrp 1 2
ip hold-time eigrp 1 6
clock rate 2000000
!
router eigrp 1
network 172.1.0.0
auto-summary
neighbor 172.1.1.5 Serial0/0.104
neighbor 172.1.1.13 Serial0/0.105
!
ip http server
no ip http secure-server
!
control-plane
!
line con 0
line aux 0
line vty 0 4
login
!
!
end
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