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authorNeale Ranns <neale@graphiant.com>2020-12-21 08:29:34 +0000
committerOle Tr�an <otroan@employees.org>2021-02-15 17:27:48 +0000
commit8f5fef2c78b95de1a636ce27111722b71702212a (patch)
treea0ebd0189969ccae1f0bdd7c1a9c18dd7a066f2e /src/vnet/adj/adj_nbr.h
parent54be0cc044f445853fae7b8995c477605250af16 (diff)
ip: Path MTU
Type: feature Support setting the MTU for a peer on an interface. The minimum value of the path and interface MTU is used at forwarding time. the path MTU is specified for a given peer, by address and table-ID. In the forwarding plane the MTU is enfored either: 1 - if the peer is attached, then the MTU is set on the peer's adjacency 2 - if the peer is not attached, it is remote, then a DPO is added to the peer's FIB entry to perform the necessary fragmentation. Signed-off-by: Neale Ranns <neale@graphiant.com> Change-Id: I8b9ea6a07868b50e97e2561f18d9335407dea7ae
Diffstat (limited to 'src/vnet/adj/adj_nbr.h')
-rw-r--r--src/vnet/adj/adj_nbr.h7
1 files changed, 7 insertions, 0 deletions
diff --git a/src/vnet/adj/adj_nbr.h b/src/vnet/adj/adj_nbr.h
index 3a89dc89a22..4874e73a45c 100644
--- a/src/vnet/adj/adj_nbr.h
+++ b/src/vnet/adj/adj_nbr.h
@@ -75,6 +75,13 @@ extern adj_index_t adj_nbr_add_or_lock_w_rewrite(fib_protocol_t nh_proto,
const ip46_address_t *nh_addr,
u32 sw_if_index,
u8 *rewrite);
+
+/**
+ * Set the MTU on an adjacency
+ *
+ */
+extern void adj_nbr_set_mtu(adj_index_t ai, u16 mtu);
+
/**
* @brief When adding a rewrite to an adjacency these are flags that
* apply to that rewrite