ip-maddress(8) [posix man page]

IP-MADDRESS(8)							       Linux							    IP-MADDRESS(8)

NAME

       ip-maddress - multicast addresses management

SYNOPSIS

       ip [ OPTIONS ] maddress	{ COMMAND | help }

       ip maddress [ add | del ] MULTIADDR dev NAME

       ip maddress show [ dev NAME ]

DESCRIPTION

       maddress objects are multicast addresses.

   ip maddress show - list multicast addresses
       dev NAME (default)
	      the device name.

       ip maddress add - add a multicast address

       ip maddress delete - delete a multicast address

	      These commands attach/detach a static link-layer multicast address to listen on the interface.  Note that it is impossible to join
	      protocol multicast groups statically. This command only manages link-layer addresses.

	      address LLADDRESS (default)
		     the link-layer multicast address.

	      dev NAME
		     the device to join/leave this multicast address.

SEE ALSO

       ip(8)

AUTHOR

       Original Manpage by Michail Litvak <mci@owl.openwall.com>

iproute2							    20 Dec 2011 						    IP-MADDRESS(8)

RDMA_JOIN_MULTICAST(3)					   Librdmacm Programmer's Manual				    RDMA_JOIN_MULTICAST(3)

NAME

       rdma_join_multicast - Joins a multicast group.

SYNOPSIS

       #include <rdma/rdma_cma.h>

       int rdma_join_multicast (struct rdma_cm_id *id, struct sockaddr *addr, void *context);

ARGUMENTS

       id	   Communication identifier associated with the request.

       addr	   Multicast address identifying the group to join.

       context	   User-defined context associated with the join request.

DESCRIPTION

       Joins a multicast group and attaches an associated QP to the group.

RETURN VALUE

       Returns 0 on success, or -1 on error.  If an error occurs, errno will be set to indicate the failure reason.

NOTES

       Before  joining	a  multicast group, the rdma_cm_id must be bound to an RDMA device by calling rdma_bind_addr or rdma_resolve_addr.  Use of
       rdma_resolve_addr requires the local routing tables to resolve the multicast address to an RDMA device, unless a specific source address is
       provided.  The user must call rdma_leave_multicast to leave the multicast group and release any multicast resources.  After the join opera-
       tion completes, if a QP is associated with the rdma_cm_id, it is automatically attached to the multicast group when the multicast event	is
       retrieved  by  the  user.  Otherwise, the user is responsible for calling ibv_attach_mcast to bind the QP to the multicast group.  The join
       context is returned to the user through the private_data field in the rdma_cm_event.

SEE ALSO

       rdma_leave_multicast(3), rdma_bind_addr(3), rdma_resolve_addr(3), rdma_create_qp(3), rdma_get_cm_event(3)

librdmacm							    2008-01-02						    RDMA_JOIN_MULTICAST(3)