Exactly what I've been doing. Works great. Except I do the VLAN thing
backwards. VLAN for the radio management. OSPF /30 go on the physical
interface for radios that support 802.3 link drop upon RF link loss to
quickly trigger OSPF topology change.
On 8/11/2016 4:10 PM, Cassidy B. Larson wrote:
A lot of times we want to login to side “B” when the link between A
and B is down…but we can’t unless each side is advertised as a
/30..but I want the two radio’s to see each other when they’re up.
So what I’ve done most recently is:
.1 = Router A (configured as /30)
.2 = Radio A (configured as /29, GW set to .1)
.5 = Radio B (configured as /29 GW set to .6)
.6 = Router B (configured as /30)
Then I just run OSPF on a separate /30 across that path on a separate
VLAN. The above is just for MGMT of the radios.
On Aug 11, 2016, at 3:02 PM, Christopher Gray
<cg...@graytechsoftware.com <mailto:cg...@graytechsoftware.com>> wrote:
How do you setup radio addresses so both ends of a link can be
accessed (via loop) when the link is down?
*What I've been doing... and how it doesn't work:*
I've been setting up OSPF links using a /29.
Router A -- Radio A ~~ Radio B -- Router B
Devices get addresses:
* .1 - Router A
* .2 - Router B
* .3 - Radio A (Gateway set to .1)
* .4 - Radio B (Gateway set to .2)
* .5 - Spare (used when swapping links)
* .6 - Spare (used when swapping links)
This feels very clean, and works nicely when the link is up or when
there is no network loop. However, when the link goes down, if I am
connected near Router A, all traffic for that /29 is routed through
Router A, and I have no access to the B side. Then, I can only access
the B side if I connect closer to Router B.
Suggestions?
Thanks - Chris
