diff options
| author | Satheesh Kumar K <sathk@cumulusnetworks.com> | 2019-08-25 22:31:47 -0700 |
|---|---|---|
| committer | Satheesh Kumar K <sathk@cumulusnetworks.com> | 2019-09-16 20:11:01 -0700 |
| commit | 4bf3dda597cea57745e1aab906d52fc808f088e2 (patch) | |
| tree | 512498e80ee97524d73dc57c9f6142405224985d /lib/mlag.h | |
| parent | 6c11fdb3c46ce27ac0e2440e941add5a43efaf2c (diff) | |
pimd : Add support for MLAG Register & Un-register
when ever a FRR Client wants to send any data to another node
using MLAG Channel, uses below mechanisam.
1. sends a MLAG Registration to zebra with interested messages that
it is intended to receive from peer.
2. In response to this request, Zebra opens communication channel with
MLAG. and also in Rx. diretion zebra forwards only those messages which
client shown interest during registration
3. when client is no-longer interested in communicating with MLAG, client
posts De-register to Zebra
4. if this is the last client which is interested for MLAG Communication,
zebra closes the channel.
why PIM Needs MLAG Communication
================================
1. In general on LAN Networks elecetd DR will send the Join towards
Multicast RP in case of a LHR and Register in case of FHR.
2. But in case DR Goes down, traffic will be re-converged only after
the New DR is elected, but this can take time based on Hold Timer to
detect the DR down.
3. this can be optimised by using MLAG Mecganisam.
4. and also Traffic can be forwarded more efficiently by knowing the cost
towards RP using MLAG
Signed-off-by: Satheesh Kumar K <sathk@cumulusnetworks.com>
Diffstat (limited to 'lib/mlag.h')
| -rw-r--r-- | lib/mlag.h | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/lib/mlag.h b/lib/mlag.h index 2b904d44f4..d461fdc44e 100644 --- a/lib/mlag.h +++ b/lib/mlag.h @@ -26,12 +26,33 @@ extern "C" { #endif +#define MLAG_BUF_LIMIT 2048 + enum mlag_role { MLAG_ROLE_NONE, MLAG_ROLE_PRIMARY, MLAG_ROLE_SECONDARY }; +/* + * This message definition should match mlag.proto + * Beacuse mesasge registartion is based on this + */ +enum mlag_msg_type { + MLAG_MSG_NONE = 0, + MLAG_REGISTER = 1, + MLAG_DEREGISTER = 2, + MLAG_STATUS_UPDATE = 3, + MLAG_MROUTE_ADD = 4, + MLAG_MROUTE_DEL = 5, + MLAG_DUMP = 6, + MLAG_MROUTE_ADD_BULK = 7, + MLAG_MROUTE_DEL_BULK = 8, + MLAG_PIM_CFG_DUMP = 10, + MLAG_VXLAN_UPDATE = 11, + MLAG_PEER_FRR_STATUS = 12, +}; + extern char *mlag_role2str(enum mlag_role role, char *buf, size_t size); #ifdef __cplusplus |