Dear CSC:
My question is regarding how OSPFv3 calculates auto-cost. I'm using:
auto-cost reference-bandwidth 100000
I see the following costs on two particular interfaces:
RP/0/RSP0/CPU0:XXXXXXXX#show ospfv3 inter brie
Tue Aug 5 10:37:19.582 CST
Interface PID Area IPv6 Address Cost State Nbrs F/C
Lo0 ipv6 0 fe80::xxxxxxx:544b 1 LOOP 0/0
BE1 ipv6 0 fe80::xxxxxxx:d5b 10 P2P 1/1
BE2 ipv6 0 fe80::xxxxxxxx:d5a 1 P2P 1/1
The thing is both bundles are configured exactly the same, down to the number of interfaces.
RP/0/RSP0/CPU0:xxxxxxxxx#show int bundle-ether 1
Tue Aug 5 10:39:13.124 CST
Bundle-Ether1 is up, line protocol is up
Interface state transitions: 3
Hardware is Aggregated Ethernet interface(s), address is 0026.982c.0d5b
Description:
Internet address is x.x.x.x/30
MTU 9216 bytes, BW 80000000 Kbit (Max: 80000000 Kbit)
reliability 255/255, txload 1/255, rxload 23/255
Encapsulation ARPA,
Full-duplex, 80000Mb/s
loopback not set,
ARP type ARPA, ARP timeout 04:00:00
No. of members in this bundle: 8
TenGigE0/4/0/0 Full-duplex 10000Mb/s Active
TenGigE0/4/0/1 Full-duplex 10000Mb/s Active
TenGigE0/4/0/2 Full-duplex 10000Mb/s Active
TenGigE0/4/0/3 Full-duplex 10000Mb/s Active
TenGigE0/4/0/4 Full-duplex 10000Mb/s Active
TenGigE0/4/0/5 Full-duplex 10000Mb/s Active
TenGigE0/4/0/6 Full-duplex 10000Mb/s Active
TenGigE0/4/0/7 Full-duplex 10000Mb/s Active
------
RP/0/RSP0/CPU0:xxxxxxxxxx#show int bundle-ether 2
Tue Aug 5 10:40:14.732 CST
Bundle-Ether2 is up, line protocol is up
Interface state transitions: 1
Hardware is Aggregated Ethernet interface(s), address is 0026.982c.0d5a
Description:
Internet address is x.x.x.x/30
MTU 9216 bytes, BW 80000000 Kbit (Max: 80000000 Kbit)
reliability 255/255, txload 6/255, rxload 10/255
Encapsulation ARPA,
Full-duplex, 80000Mb/s
loopback not set,
ARP type ARPA, ARP timeout 04:00:00
No. of members in this bundle: 8
TenGigE0/7/0/0 Full-duplex 10000Mb/s Active
TenGigE0/7/0/1 Full-duplex 10000Mb/s Active
TenGigE0/7/0/2 Full-duplex 10000Mb/s Active
TenGigE0/7/0/3 Full-duplex 10000Mb/s Active
TenGigE0/7/0/4 Full-duplex 10000Mb/s Active
TenGigE0/7/0/5 Full-duplex 10000Mb/s Active
TenGigE0/7/0/6 Full-duplex 10000Mb/s Active
TenGigE0/7/0/7 Full-duplex 10000Mb/s Active
My configuration is the following:
router ospfv3 ipv6
graceful-restart
router-id x.x.x.x
auto-cost reference-bandwidth 100000
area 0
interface Loopback0
!
interface Bundle-Ether1
authentication ipsec spi 300 md5 password 00021507055E0E555E75191C514E534E420D0A052B2E217B626177415F41555806
network point-to-point
!
interface Bundle-Ether2
authentication ipsec spi 300 md5 password 00021507055E0E555E75191C514E534E420D0A052B2E217B626177415F41555806
network point-to-point
[snip]
Can anyone shed some light as to what to look for to see why I get a cost of '1' in one bundle and '10' in the other?
Regards,
c.
