Brocade Unified IP MIB Reference (Supporting FastIron Release 07.5.00) - Manual (Page 659)

Unified IP MIB Reference 631
53-1002549-02
Server load balancing table
Server load balancing table
The following objects define TCP and UDP sessions in a ServerIron device.
Server load balancing traffic information
Server Load Balancing (SLB) is based on associations between real servers and virtual servers.
The real servers are your application servers. The virtual servers have one or more virtual IP
addresses (VIPs). You associate a real server with a virtual server by binding TCP or UDP ports on
the real servers with TCP or UDP ports on the virtual server. When a client sends a TCP or UDP
request for a port on the virtual server, the ServerIron device sends the client’s request to the real
server.
The following objects provide information on the SLB traffic packets that were transmitted between
the server and the clients.
Name, OID, and syntax Access Description
snL4slbGlobalSDAType
brcdIp.1.1.4.1.3
Syntax: Integer Read-write Shows the method the ServerIron device uses to select a real server
for client request:
•
leastconnection(1) – The ServerIron device sends the request to
the real server that currently has the fewest number of active
connections with clients.
•
roundrobin(2) – The ServerIron device sends the request to each
server in rotation, regardless of how many connections each
server has.
•
weighted(3) – The ServerIron device uses the weights you assign
to the real servers to select a real server. The weights are based
on the number of entries the ServerIron device has for each
server in the sessions table.
Default: leastconnection(1)
snL4slbTotalConnections
brcdIp.1.1.4.1.4
Syntax: Counter Read-only Shows the total number of client connections on the ServerIron device
since its last reboot. A connection consists of two sessions:
client-to-server session and server-to-client session.
snL4slbLimitExceeds
brcdIp.1.1.4.1.5
Syntax: Integer Read-only Shows the number of times the TCP SYN requests from clients
exceeded the configured
“snL4TcpSynLimit” value.
Name, OID, and syntax Access Description
snL4slbForwardTraffic
brcdIp.1.1.4.1.6
Syntax: Counter Read-only Shows the number of packets sent by clients to the server.
snL4slbReverseTraffic
brcdIp.1.1.4.1.7
Syntax: Counter Read-only Shows the number of packets sent by servers to clients. Generally, this
value is 0 unless the client is using FTP or another application that
causes the server to initiate connections.