Technical data

18 Brocade ServerIron ADX Advanced Server Load Balancing Guide
53-1003441-01
SIP SLB over TCP
1
Show commands for displaying SIP sessions
NOTE
The show sip session command does not count SIP sessions. Use the show sip server command to
display SIP-related real server information.
• “Showing sip session info”
• “show sip server”
Showing sip session info
Use the show sip session info command to display information on SIP session usage.
ServerIronADX#show sip session info
Syntax: show sip session info
ServerIronADX#show sip session info
slot-9 cup-1 Avail. SIP Ses = 0 total Sip Sessi= 0
Show sip server
Use the show sip server command to display real server-related information.
ServerIronADX#show sip server
Syntax: show sip server
SIP SLB over TCP
Like HTTP, SIP follows a request-and-response model. However, SIP transactions are independent
of the underlying transport layer protocol. For example, some transactions run over UDP
connections, some get transported over TCP connections, and some use a combination of TCP and
UDP interchangeably, depending on the size of the data.
Generally most SIP deployments are observed over UDP transport. However, some service
providers use TCP instead of UDP to offer advanced SIP-based voice and video services. The
primary reason for this method is to avoid the fragmentation experienced over UDP connections
and to use the congestion avoidance mechanism of TCP.
ServerIronADX#show sip server
Avail. SIP sessions = 0 Total SIP sessions = 500000
Server State - 0: disabled, 1:enabled, 2:failed, 3:test, 4:suspect, 5:grace_dn,
6:active
Real Server St CurrConn TotConn CurrSess PeakConn
r31 6 28723 344489 28723 91687
r32 6 28722 344505 28722 91632
r33 6 28722 344549 28722 91951
r34 6 28722 344596 28722 91566
r35 6 28723 344702 28723 91870