Cisco ASA Series Cli Configuration Manual page 1198

Licensing for Cisco Unified Communications Proxy Features
Table 1-2
Table 1-2
Security Appliance Platform
ASA 5505
ASA 5510
ASA 5520
ASA 5540
ASA 5550
ASA 5580
The following table shows the Unified Communications Proxy license details by platform for
intercompany media engine proxy:
Model License Requirement
All models Intercompany Media Engine license.
When you enable the Intercompany Media Engine (IME) license, you can use TLS proxy sessions up
to the configured TLS proxy limit. If you also have a Unified Communications (UC) license installed
that is higher than the default TLS proxy limit, then the ASA sets the limit to be the UC license limit
plus an additional number of sessions depending on your model. You can manually configure the TLS
proxy limit using the tls-proxy maximum-sessions command. To view the limits of your model, enter
the tls-proxy maximum-sessions ? command. If you also install the UC license, then the TLS proxy
sessions available for UC are also available for IME sessions. For example, if the configured limit is
1000 TLS proxy sessions, and you purchase a 750-session UC license, then the first 250 IME sessions
do not affect the sessions available for UC. If you need more than 250 sessions for IME, then the
remaining 750 sessions of the platform limit are used on a first-come, first-served basis by UC and
IME.
•
•
Note
You might also use SRTP encryption sessions for your connections:
•
•
Note
For more information about licensing, see
Cisco ASA Series CLI Configuration Guide
1-6
shows the default and maximum TLS session details by platform.
Default and Maximum TLS Sessions on the Security Appliance
For a license part number ending in "K8", TLS proxy sessions are limited to 1000.
For a license part number ending in "K9", the TLS proxy limit depends on your configuration and
the platform model.
K8 and K9 refer to whether the license is restricted for export: K8 is unrestricted, and K9 is
restricted.
For a K8 license, SRTP sessions are limited to 250.
For a K9 license, there is no limit.
Only calls that require encryption/decryption for media are counted toward the SRTP limit; if
passthrough is set for the call, even if both legs are SRTP, they do not count toward the limit.
Chapter 1 Information About Cisco Unified Communications Proxy Features
Default TLS Sessions
10
100
300
1000
2000
4000
Chapter 1, "Managing Feature Licenses."
Maximum TLS Sessions
80
200
1200
4500
4500
13,000