06-14-2005 04:10 AM - edited 03-03-2019 09:48 AM
System:2651XM 64F/256R with NM-16-ESW, WIC-1T.
The Router are calculating the EIGRP Delay wrong.
This is the same machine, we tested both IOS versions. No changes to the config are performed.
Is this a known bug ?
Software 12.4.1a
IP-EIGRP (AS 1): Topology entry for 0.0.0.0/0
State is Passive, Query origin flag is 1, 2 Successor(s), FD is 1812736
Routing Descriptor Blocks:
10.159.31.42 (FastEthernet0/0), from 10.159.31.42, Send flag is 0x0
Composite metric is (1812736/1810176), Route is External
Vector metric:
Minimum bandwidth is 2000 Kbit
Total delay is 20810 microseconds
Reliability is 255/255
Load is 14/255
Minimum MTU is 1500
Hop count is 7
External data:
Originating router is 10.159.253.7
AS number of route is 0
External protocol is Static, external metric is 0
Administrator tag is 0 (0x00000000)
Exterior flag is set
10.159.31.34 (FastEthernet0/1), from 10.159.31.34, Send flag is 0x0
Composite metric is (1812736/1810176), Route is External
Vector metric:
Minimum bandwidth is 2000 Kbit
Total delay is 20810 microseconds
Reliability is 255/255
Load is 14/255
Minimum MTU is 1500
Hop count is 7
External data:
Originating router is 10.159.253.7
AS number of route is 0
External protocol is Static, external metric is 0
Administrator tag is 0 (0x00000000)
Exterior flag is set
10.159.240.133 (Vlan925), from 10.159.240.133, Send flag is 0x0
Composite metric is (25922816/28416), Route is External
Vector metric:
Minimum bandwidth is 8000 Kbit
Total delay is 1000110 microseconds
Reliability is 255/255
Load is 1/255
Minimum MTU is 1500
Hop count is 2
External data:
Originating router is 10.159.253.7
AS number of route is 0
External protocol is Static, external metric is 0
Administrator tag is 0 (0x00000000)
Exterior flag is set
Software 12.3.15
IP-EIGRP (AS 1): Topology entry for 0.0.0.0/0
State is Passive, Query origin flag is 1, 1 Successor(s), FD is 323072
Routing Descriptor Blocks:
10.159.240.133 (Vlan925), from 10.159.240.133, Send flag is 0x0
Composite metric is (323072/28416), Route is External
Vector metric:
Minimum bandwidth is 8000 Kbit
Total delay is 120 microseconds
Reliability is 255/255
Load is 1/255
Minimum MTU is 1500
Hop count is 2
External data:
Originating router is 10.159.253.7
AS number of route is 0
External protocol is Static, external metric is 0
Administrator tag is 0 (0x00000000)
Exterior flag is set
06-20-2005 01:17 PM
well it looks like your bandwidth and delay are different, which would cause the different metric.
I'd make sure the bandwidth statement is on all interfaces and do a show int on the path to see if delay is being calculated correctly. Maybe default behavior for a particular kind of interface changed?
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