Hello everyone,
In the default mode, cisco router only supports 32-bit metric version.
If you want that cisco router to support 64-bit metric version, you should use named configuratioin
EIGRP AS Number Configuration vs. EIGRP Named Configuration
// EIGRP AS Number Configuration //
R16#sh run | s eigrp
router eigrp 45678
network 123.16.16.16 0.0.0.0
network 123.20.1.2 0.0.0.0
network 123.20.1.17 0.0.0.0
R16#
// EIGRP Named Configuration //
R16#sh run | s eigrp
router eigrp lab
!
address-family ipv4 unicast autonomous-system 45678
!
topology base
exit-af-topology
network 123.16.16.16 0.0.0.0
network 123.20.1.2 0.0.0.0
network 123.20.1.17 0.0.0.0
exit-address-family
R16#
// HOW TO //
R16#
R16#show eigrp protocols
EIGRP-IPv4 Protocol for AS(45678)
Metric weight K1=1, K2=0, K3=1, K4=0, K5=0
NSF-aware route hold timer is 240
Router-ID: 123.16.16.16
Topology : 0 (base)
Active Timer: 3 min
Distance: internal 90 external 170
Maximum path: 4
Maximum hopcount 100
Maximum metric variance 1
R16#sh run | s eigrp
router eigrp 45678
network 123.16.16.16 0.0.0.0
network 123.20.1.2 0.0.0.0
network 123.20.1.17 0.0.0.0
R16#conf t
Enter configuration commands, one per line. End with CNTL/Z.
R16(config)#no router eigrp 45678
R16(config)#router eigrp lab
R16(config-router)#add
R16(config-router)#address-family ?
ipv4 Address family IPv4
ipv6 Address family IPv6
R16(config-router)#address-family ipv4 ?
autonomous-system Specify Address-Family Autonomous System Number
multicast Address Family Multicast
unicast Address Family Unicast
vrf Specify a specific virtual routing/forwarding instance
R16(config-router)#address-family ipv4 as
R16(config-router)#address-family ipv4 au
R16(config-router)#address-family ipv4 autonomous-system 45678
R16(config-router-af)#ne
R16(config-router-af)#net
R16(config-router-af)#network 123.16.16.16 0.0.0.0
R16(config-router-af)#network 123.20.1.2 0.0.0.0
R16(config-router-af)#network 123.20.1.2 0.0.0.0
*Nov 13 19:23:06.169: %DUAL-5-NBRCHANGE: EIGRP-IPv4 45678: Neighbor 123.20.1.3 (Ethernet0/1) is up: new adjacency
*Nov 13 19:23:06.169: %DUAL-5-NBRCHANGE: EIGRP-IPv4 45678: Neighbor 123.20.1.1 (Ethernet0/1) is up: new adjacency
R16(config-router-af)#network 123.20.1.17 0.0.0.0
R16(config-router-af)#
*Nov 13 19:23:10.993: %DUAL-5-NBRCHANGE: EIGRP-IPv4 45678: Neighbor 123.20.1.18 (Ethernet0/2) is up: new adjacency
R16(config-router-af)#
R16(config-router-af)#end
R16#
R16#show ipr
*Nov 13 19:23:15.782: %SYS-5-CONFIG_I: Configured from console by console
R16#show ip route eigrp
Codes: L - local, C - connected, S - static, 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
i - IS-IS, su - IS-IS summary, 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, H - NHRP, l - LISP
a - application route
+ - replicated route, % - next hop override
Gateway of last resort is not set
123.0.0.0/8 is variably subnetted, 10 subnets, 2 masks
D 123.15.15.15/32 [90/3584000] via 123.20.1.1, 00:00:09, Ethernet0/1
D 123.17.17.17/32 [90/3584000] via 123.20.1.18, 00:00:09, Ethernet0/2
D 123.20.1.8/29 [90/1536000] via 123.20.1.18, 00:00:09, Ethernet0/2
[90/1536000] via 123.20.1.1, 00:00:09, Ethernet0/1
D 123.55.55.55/32 [90/3584000] via 123.20.1.3, 00:00:09, Ethernet0/1
D 123.66.66.66/32 [90/4096000] via 123.20.1.18, 00:00:09, Ethernet0/2
[90/4096000] via 123.20.1.1, 00:00:09, Ethernet0/1
R16#wr
Building configuration...
[OK]
R16#show eigr
R16#show eigrp pro
R16#show eigrp protocols
EIGRP-IPv4 VR(lab) Address-Family Protocol for AS(45678)
Metric weight K1=1, K2=0, K3=1, K4=0, K5=0 K6=0
Metric rib-scale 128
Metric version 64bit
NSF-aware route hold timer is 240
Router-ID: 123.16.16.16
Topology : 0 (base)
Active Timer: 3 min
Distance: internal 90 external 170
Maximum path: 4
Maximum hopcount 100
Maximum metric variance 1
Total Prefix Count: 8
Total Redist Count: 0
R16#show ip pro
R16#show ip protocols
*** IP Routing is NSF aware ***
Routing Protocol is "application"
Sending updates every 0 seconds
Invalid after 0 seconds, hold down 0, flushed after 0
Outgoing update filter list for all interfaces is not set
Incoming update filter list for all interfaces is not set
Maximum path: 32
Routing for Networks:
Routing Information Sources:
Gateway Distance Last Update
Distance: (default is 4)
Routing Protocol is "eigrp 45678"
Outgoing update filter list for all interfaces is not set
Incoming update filter list for all interfaces is not set
Default networks flagged in outgoing updates
Default networks accepted from incoming updates
EIGRP-IPv4 VR(lab) Address-Family Protocol for AS(45678)
Metric weight K1=1, K2=0, K3=1, K4=0, K5=0 K6=0
Metric rib-scale 128
Metric version 64bit
NSF-aware route hold timer is 240
Router-ID: 123.16.16.16
Topology : 0 (base)
Active Timer: 3 min
Distance: internal 90 external 170
Maximum path: 4
Maximum hopcount 100
Maximum metric variance 1
Total Prefix Count: 8
Total Redist Count: 0
Automatic Summarization: disabled
Maximum path: 4
Routing for Networks:
123.16.16.16/32
123.20.1.2/32
123.20.1.17/32
Routing Information Sources:
Gateway Distance Last Update
123.20.1.3 90 00:01:22
123.20.1.1 90 00:01:23
123.20.1.18 90 00:01:22
Distance: internal 90 external 170
R16#
R16#
See you next time and Good luck !!
// Reference //
1.
http://www.cisco.com/c/dam/en/us/products/collateral/ios-nx-os-software/enhanced-interior-gateway-routing-protocol-eigrp/Advances_In_EIGRP.pdf
2.
CISCO IP Routing: EIGRP Command Reference
http://www.cisco.com/c/en/us/td/docs/ios/iproute_eigrp/command/reference/ire_book/ire_a1.html
3.
http://blog.csdn.net/wunderup/article/details/41076965
In the default mode, cisco router only supports 32-bit metric version.
If you want that cisco router to support 64-bit metric version, you should use named configuratioin
EIGRP AS Number Configuration vs. EIGRP Named Configuration
// EIGRP AS Number Configuration //
R16#sh run | s eigrp
router eigrp 45678
network 123.16.16.16 0.0.0.0
network 123.20.1.2 0.0.0.0
network 123.20.1.17 0.0.0.0
R16#
// EIGRP Named Configuration //
R16#sh run | s eigrp
router eigrp lab
!
address-family ipv4 unicast autonomous-system 45678
!
topology base
exit-af-topology
network 123.16.16.16 0.0.0.0
network 123.20.1.2 0.0.0.0
network 123.20.1.17 0.0.0.0
exit-address-family
R16#
// HOW TO //
R16#
R16#show eigrp protocols
EIGRP-IPv4 Protocol for AS(45678)
Metric weight K1=1, K2=0, K3=1, K4=0, K5=0
NSF-aware route hold timer is 240
Router-ID: 123.16.16.16
Topology : 0 (base)
Active Timer: 3 min
Distance: internal 90 external 170
Maximum path: 4
Maximum hopcount 100
Maximum metric variance 1
R16#sh run | s eigrp
router eigrp 45678
network 123.16.16.16 0.0.0.0
network 123.20.1.2 0.0.0.0
network 123.20.1.17 0.0.0.0
R16#conf t
Enter configuration commands, one per line. End with CNTL/Z.
R16(config)#no router eigrp 45678
R16(config)#router eigrp lab
R16(config-router)#add
R16(config-router)#address-family ?
ipv4 Address family IPv4
ipv6 Address family IPv6
R16(config-router)#address-family ipv4 ?
autonomous-system Specify Address-Family Autonomous System Number
multicast Address Family Multicast
unicast Address Family Unicast
vrf Specify a specific virtual routing/forwarding instance
R16(config-router)#address-family ipv4 as
R16(config-router)#address-family ipv4 au
R16(config-router)#address-family ipv4 autonomous-system 45678
R16(config-router-af)#ne
R16(config-router-af)#net
R16(config-router-af)#network 123.16.16.16 0.0.0.0
R16(config-router-af)#network 123.20.1.2 0.0.0.0
R16(config-router-af)#network 123.20.1.2 0.0.0.0
*Nov 13 19:23:06.169: %DUAL-5-NBRCHANGE: EIGRP-IPv4 45678: Neighbor 123.20.1.3 (Ethernet0/1) is up: new adjacency
*Nov 13 19:23:06.169: %DUAL-5-NBRCHANGE: EIGRP-IPv4 45678: Neighbor 123.20.1.1 (Ethernet0/1) is up: new adjacency
R16(config-router-af)#network 123.20.1.17 0.0.0.0
R16(config-router-af)#
*Nov 13 19:23:10.993: %DUAL-5-NBRCHANGE: EIGRP-IPv4 45678: Neighbor 123.20.1.18 (Ethernet0/2) is up: new adjacency
R16(config-router-af)#
R16(config-router-af)#end
R16#
R16#show ipr
*Nov 13 19:23:15.782: %SYS-5-CONFIG_I: Configured from console by console
R16#show ip route eigrp
Codes: L - local, C - connected, S - static, 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
i - IS-IS, su - IS-IS summary, 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, H - NHRP, l - LISP
a - application route
+ - replicated route, % - next hop override
Gateway of last resort is not set
123.0.0.0/8 is variably subnetted, 10 subnets, 2 masks
D 123.15.15.15/32 [90/3584000] via 123.20.1.1, 00:00:09, Ethernet0/1
D 123.17.17.17/32 [90/3584000] via 123.20.1.18, 00:00:09, Ethernet0/2
D 123.20.1.8/29 [90/1536000] via 123.20.1.18, 00:00:09, Ethernet0/2
[90/1536000] via 123.20.1.1, 00:00:09, Ethernet0/1
D 123.55.55.55/32 [90/3584000] via 123.20.1.3, 00:00:09, Ethernet0/1
D 123.66.66.66/32 [90/4096000] via 123.20.1.18, 00:00:09, Ethernet0/2
[90/4096000] via 123.20.1.1, 00:00:09, Ethernet0/1
R16#wr
Building configuration...
[OK]
R16#show eigr
R16#show eigrp pro
R16#show eigrp protocols
EIGRP-IPv4 VR(lab) Address-Family Protocol for AS(45678)
Metric weight K1=1, K2=0, K3=1, K4=0, K5=0 K6=0
Metric rib-scale 128
Metric version 64bit
NSF-aware route hold timer is 240
Router-ID: 123.16.16.16
Topology : 0 (base)
Active Timer: 3 min
Distance: internal 90 external 170
Maximum path: 4
Maximum hopcount 100
Maximum metric variance 1
Total Prefix Count: 8
Total Redist Count: 0
R16#show ip pro
R16#show ip protocols
*** IP Routing is NSF aware ***
Routing Protocol is "application"
Sending updates every 0 seconds
Invalid after 0 seconds, hold down 0, flushed after 0
Outgoing update filter list for all interfaces is not set
Incoming update filter list for all interfaces is not set
Maximum path: 32
Routing for Networks:
Routing Information Sources:
Gateway Distance Last Update
Distance: (default is 4)
Routing Protocol is "eigrp 45678"
Outgoing update filter list for all interfaces is not set
Incoming update filter list for all interfaces is not set
Default networks flagged in outgoing updates
Default networks accepted from incoming updates
EIGRP-IPv4 VR(lab) Address-Family Protocol for AS(45678)
Metric weight K1=1, K2=0, K3=1, K4=0, K5=0 K6=0
Metric rib-scale 128
Metric version 64bit
NSF-aware route hold timer is 240
Router-ID: 123.16.16.16
Topology : 0 (base)
Active Timer: 3 min
Distance: internal 90 external 170
Maximum path: 4
Maximum hopcount 100
Maximum metric variance 1
Total Prefix Count: 8
Total Redist Count: 0
Automatic Summarization: disabled
Maximum path: 4
Routing for Networks:
123.16.16.16/32
123.20.1.2/32
123.20.1.17/32
Routing Information Sources:
Gateway Distance Last Update
123.20.1.3 90 00:01:22
123.20.1.1 90 00:01:23
123.20.1.18 90 00:01:22
Distance: internal 90 external 170
R16#
R16#
See you next time and Good luck !!
// Reference //
1.
http://www.cisco.com/c/dam/en/us/products/collateral/ios-nx-os-software/enhanced-interior-gateway-routing-protocol-eigrp/Advances_In_EIGRP.pdf
2.
CISCO IP Routing: EIGRP Command Reference
http://www.cisco.com/c/en/us/td/docs/ios/iproute_eigrp/command/reference/ire_book/ire_a1.html
3.
http://blog.csdn.net/wunderup/article/details/41076965
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