SMCD-LINKGROUP(8)

NAME
smcd-linkgroup - Print information about SMC-D link groups

smcr-linkgroup - Print information about SMC-R link groups and links

SYNOPSIS

smcd [ OPTIONS ] linkgroup { COMMAND | help }

smcd linkgroup [ show ] [ all | LG-ID ]

smcr [ OPTIONS ] linkgroup { COMMAND | help }

smcr linkgroup { show | link-show } [ all | LG-ID ] [ netdev NETDEV ] [ ibdev IBDEV ]

DESCRIPTION
The smcd linkgroup command displays SMC-D link groups and their properties. The smcr linkgroup command displays SMC-R link groups and links with their properties.

  smcd,smcr linkgroup show
inspect the link group properties

all (default)
    Show all link groups.

LG-ID
    Show the link group with the ID LG-ID

netdev NETDEV
    SMC-R only: list the link groups for the specified network device.

ibdev IBDEV
    SMC-R only: list the link groups for the specified RoCE device.

  smcr linkgroup link-show
SMC-R only: Inspect the link properties

all (default)
    List all links of all link groups.

LG-ID
    Show links of the link group with the id. LG-ID

netdev NETDEV
    List the links of the link groups for the specified network device.

ibdev IBDEV
    List the links of the link groups for the specified RoCE device.

OUTPUT

  LG-ID
ID of the link group.

  LG-Role
Role of the link group.

SERV
    The link group has a SERVER role.

CLNT
    The link group has a CLIENT role.

  LG-Type
Type of the link group.

NONE
    The link group has the initial type.

SINGLE
    The link group has only a single link, i.e. the local and the peer system can offer one device port only for this link group, which means a link outage on either side cannot be recovered.

SYM The link group has two symmetric links, i.e. the local and the peer system can offer two device ports for this link group, which means a link outage on either side can be recovered.

ASYMP
    The link group has asymmetric links, i.e. the peer system can offer one device port only for this link group, which means a link outage on the peer side cannot be recovered.

ASYML
    The link group has asymmetric links, i.e. the local system can offer one device port only for this link group, which means a link outage on the local side cannot be recovered.

  VLAN
The VLAN to which the link group belongs.

  #Conns
Number of connections(sockets) running on the link or link group.

  PNET-ID
PNET ID of the link group. Asterisk "*" means PNET ID is set by the user.

  Net-Dev
Network device name corresponding to the link.

  Link-State
The state of the link.

LINK_UNUSED
    The link is not in use and in initial state.

LINK_INACTIVE
    The link is inactive and will go away.

LINK_ACTIVATING
    The link is being activated with the peer.

LINK_ACTIVE
    The link is active and operates on an established link with the peer. Data is being exchanged via RDMA.

  Link-UID
Unique identifier of the link. This identifier consists of link group id and link id.

  Peer-UID
Unique identifier of the link on the peer side. This identifier consists of link group id and link id.

  IB-Dev
Name of the RoCE device used by the link.

  IB-P
Port of the RoCE device used by the link.

  Local-GID
GID of the RoCE port used by the link.

  Peer-GID
GID of the peer RoCE port used by the link.

EXAMPLES

1. Show all SMC-D link groups:
# smcd linkgroup show all

2. Show all SMC-D link groups with link group id 50:
# smcd linkgroup show 50

3. Show all SMC-R links:
# smcr linkgroup link-show all

4. Show all SMC-R links with link group ID 40:
# smcr linkgroup link-show 40

5. Show all SMC-R links on RoCE device "mlx4_0":
# smcr linkgroup link-show ibdev mlx4_0

6. Show all SMC-R links on network device "eth0":
# smcr linkgroup link-show netdev eth0

SEE ALSO
smcd(8), smcr(8)