Datasheet

Product Bulletin
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Available Description Benefit
New Protocol Support:
Session Initiation
Protocol (SIP)
SIP is a peer-to-peer protocol where end-devices (user agent)
initiate interactive communications such as Internet multimedia
conferences, Internet telephone calls, voice over IP, and
multimedia distribution sessions with SIP servers.
Cisco ACE supports SIP over TCP and UDP. Load-balancing
decision can be based on fields in the SIP header.
Session persistence is based on SIP Call ID.
Based on the keep-alive response from the SIP servers, ACE
can rotate the server in or out of service, and make reliable load-
balancing decisions for SIP-based media applications.
Intelligent switching,
scalability and high-availability
of SIP-based multimedia
applications
New Protocol Support:
Real-Time Streaming
Protocol (RTSP)
RTSP protocol is used for streaming audio and video for
applications such as Cisco IP/TV, RealAudio, and RealNetworks.
Cisco ACE supports RTSP over TCP.
The load-balancing decision can be based on RTSP URL(rtsp://)
or fields in the RTSP header.
Session Persistence is done using RTSP Session headers.
Based on the keep-alive response from application servers
running Cisco IP/TV, Real Audio or Real Networks, etc. the ACE
can place the servers in or out of service, and make reliable load-
balancing decisions of RTSP media applications.
Intelligent switching,
scalability and high-availability
of RTSP-based streaming
audio and video
New Protocol Support:
Remote Authentication
Dial-In User Service
(RADIUS).
RADIUS is an authentication and accounting protocol. Cisco ACE
is RADIUS protocol aware and provides ability to load balance
and persist based on specific RADIUS protocol information.
Intelligent switching ,
scalability and high-availability
across many Radius servers
New Protocol Support:
Microsoft Remote
Desktop Protocol (RDP)
Microsoft RDP provides users with remote display and input
capabilities over network connections for Windows-based
applications running on a terminal server.
ACE supports RDP load balancing for Windows–based
applications running on terminal servers.
Cisco ACE makes the load-balancing decision based on the
routing token in the RDP header.
Intelligent switching ,
scalability and high-availability
across many Microsoft
terminal servers
Table 2.
Fast Description Benefit
UDP Booster UDP booster feature is used for switching applications that
requires very high UDP connection rates, like DNS loadblancing.
To achieve such high rates, ACE uses statistical load-balancing
instead of traditional algorithmic load-balancing.
Boost performance of UDP-
based applications like DNS
load balancing to millions of
requests per second.
UDP Fast Aging ACE can provide very high scalability in terms of number of
clients serviced for applications requiring a single response per
request
With UDP Fast Aging ACE closes the UDP connection
immediately after the server responds to the client.
ACE load balances all new requests to new real servers in the
server farm according to the predictor algorithm.
All retransmitted UDP requests from clients go to the same real
server.
Highly scalable UDP
applications that require a
single response per request.