Cisco ISA500 Series Administration Manual page 277

VPN
Viewing the VPN Status
Cisco ISA500 Series Integrated Security Appliance Administrator Guide
CSTP is a Cisco proprietary protocol for SSL VPN tunneling. "In" means "from the
client" and "Out" means "to the client". The client is the PC running the Cisco
AnyConnect VPN Client software that connects to the security appliance running
the SSL VPN server.
A CSTP frame is a packet carrying CSTP protocol information. There are two
major frame types, control frames and data frames. Control frames implement
control functions within the protocol. Data frames carry the client data, such as the
tunneled payload.
The following table displays the global statistic information. To clear the global
statistic information, click Clear Global.
Active Users
In CSTP frames
In CSTP bytes
In CSTP data
In CSTP control
Out CSTP
frames
Out CSTP bytes
Out CSTP data
Out CSTP
control
The Statistic table lists the statistic information for each SSL VPN session. The
following information is displayed for a single SSL VPN session. To clear the
statistic information of the SSL VPN session, click Clear.
Session ID
In CSTP frames
The number of all connected SSL VPN users.
The number of CSTP frames received from all clients.
The total number of bytes in the CSTP frames received
from all clients.
The number of CSTP data frames received from all clients.
The number of CSTP control frames received from all
clients.
The number of CSTP frames sent to all clients.
The total number of bytes in the CSTP frames sent to all
clients.
The number of CSTP data frames sent to all clients.
The number of CSTP control frames sent to all clients.
The SSL VPN session ID.
The number of CSTP frames received from the client.
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