This discussion has been locked.

You can no longer post new replies to this discussion. If you have a question you can start a new discussion

OSPF Auto Interface Cost not working

It appears that Auto interface cost is not working in XG v 17.5.14 or v18.0.3.

I have set the Auto cost reference bandwidth to 40000 Mbits/sec in the advanced OSPF settings to match my core switches.

In the Override interface configuration, I have the Auto Interface Cost selected. The interface is connected at 1Gbps.

Based on the math, I would expect to see the OSPF cost in the Routing information to be 40 (40000/1000=40), but I am seeing a cost of 4000 on thedirectly connected subnet.

If I uncheck Auto Interface cost and manually set the cost to 40, then the cost shows up properly as 40.

This thread was automatically locked due to age.

0 emmosophos over 4 years ago

Hello CityLee's,

Thank you for contacting the Sophos Community!

I need to follow-up internally on this to confirm the behaviour, I have created a case to track this 03356753 Once I get an update I will update the thread.

Regards,
Cancel
Vote Up 0 Vote Down

Cancel
0 James Gibbins over 4 years ago

I can confirm the same issue here. While mine is on VMWare, most guests detect that my links are 40Gbs. Inside networking, whether left to auto, or hard set to 1000 or 10000(no option for 40000), OSPF costs are calculated based off a 10Mb link rather than the actual or set speed.
Cancel
Vote Up 0 Vote Down

Cancel
0 emmosophos over 4 years ago

Hello there,

Just to update you, I have escalated the case to DEV to provide feedback on this.

Once I hear from them I will update this thread.

Regards,
Cancel
Vote Up 0 Vote Down

Cancel
0 emmosophos over 4 years ago in reply to emmosophos

Hello there,

Forgot to update this earlier.

This is with DEV now and being investigated under NC-66620.

Regards,
Cancel
Vote Up 0 Vote Down

Cancel