Repository : ssh://git@open-mesh.org/doc

On branches: backup-redmine/2019-09-17,master

commit dff6d549770db12ff5cb2ca25117d1b5d791eae2 Author: Sven Eckelmann sven@narfation.org Date: Tue Sep 17 10:24:07 2019 +0000

doc: batman-adv/Multi-link-optimizations-technical

dff6d549770db12ff5cb2ca25117d1b5d791eae2 batman-adv/Multi-link-optimizations-technical.textile | 12 ++++++------ 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/batman-adv/Multi-link-optimizations-technical.textile b/batman-adv/Multi-link-optimizations-technical.textile index 9588020..ee7cc48 100644 --- a/batman-adv/Multi-link-optimizations-technical.textile +++ b/batman-adv/Multi-link-optimizations-technical.textile @@ -6,13 +6,13 @@ h1. Multi-link Optimizations (technical documentation)

Mesh nodes with multiple physical links to other mesh nodes can use this capability to gain various benefits, for example:

- * bonding: use multiple links for the same data stream to boost bandwidth - * interface alternating: send on other interfaces (and therefore other channels, if configured correctly) to minimize multi-hop bandwidth degradation +* bonding: use multiple links for the same data stream to boost bandwidth +* interface alternating: send on other interfaces (and therefore other channels, if configured correctly) to minimize multi-hop bandwidth degradation

These features operate under the following premises:

- * multiple links exist between two neighbors - * the routing decision is independent of the link a packet is received on +* multiple links exist between two neighbors +* the routing decision is independent of the link a packet is received on

Notably, these multi-interface features are independent of B.A.T.M.A.N. and could work with any routing algorithm/metric. The routing software only needs to detect that multiple peers belong to the same neighbor mesh node. This is also not related to Multi-Path Routing, which would require multiple independent links.

@@ -40,8 +40,8 @@ h2. Candidate selection

To be usable for the target features, the links must have a similar quality and should operate on a different frequency. Therefore, in batman-adv only links are further considered if:

- * the link quality is not much worse than the best link within a certain TQ threshold (now: 50) - * the link destination is different from the other already selected candidates - e.g. if A1-B1 was selected, A2-B1 would be forbidden as they would operate on the same frequency and therefore would interfere with each other +* the link quality is not much worse than the best link within a certain TQ threshold (now: 50) +* the link destination is different from the other already selected candidates - e.g. if A1-B1 was selected, A2-B1 would be forbidden as they would operate on the same frequency and therefore would interfere with each other

In the illustration below, A1-B1 and A2-B2 meet this criteria and are therefore selected as candidates.