Cisco Cisco Expressway Maintenance Manual
The following types of licenses are pooled for use by any peer in a cluster, irrespective of which peer the licenses are
installed on:
installed on:
■
Rich media session licenses
■
TURN relay licenses
for per peer capacity limits).
If a cluster peer becomes unavailable, the shareable licenses installed on that peer remain available to the rest of the
cluster peers for two weeks from the time the cluster lost contact with the peer. This will maintain the overall license
capacity of the cluster — however, note that each peer is limited by its physical capacity. After this two week period,
the licenses associated with the unavailable peer are removed from the cluster. To maintain the same capacity for
your cluster, you should ensure that either the problem with the peer is resolved or new option keys are installed on
another peer in the cluster.
cluster peers for two weeks from the time the cluster lost contact with the peer. This will maintain the overall license
capacity of the cluster — however, note that each peer is limited by its physical capacity. After this two week period,
the licenses associated with the unavailable peer are removed from the cluster. To maintain the same capacity for
your cluster, you should ensure that either the problem with the peer is resolved or new option keys are installed on
another peer in the cluster.
Small / Medium / CE500 / CE1100
‡
systems
Large / CE1000 / CE1100
‡
systems
Rich media
sessions
sessions
150
†
500
TURN relays *
1800
6000
Table 10 Maximum licenses that a peer can use
‡ CE1100 appliance can run with medium or large capacity, depending on whether it has 1Gbps or 10Gbps NICs
installed.
installed.
† This is the maximum number of licenses the system can use. This limit specifically applies to the case where a peer
becomes unavailable and other peers must use its licenses to honor the cluster's overall capacity. This is not
intended as a production capcacity limit, only as a temporary measure to allow the affected peer to be returned to
normal service. We strongly discourage installing more than 100 licenses on any platform that has small or
medium capacity.
becomes unavailable and other peers must use its licenses to honor the cluster's overall capacity. This is not
intended as a production capcacity limit, only as a temporary measure to allow the affected peer to be returned to
normal service. We strongly discourage installing more than 100 licenses on any platform that has small or
medium capacity.
* On a Large system, the total TURN capacity of 6000 relays is spread evenly across 6 ports; each port is limited to
handling 1000 relays. On a Small/Medium system, there is a single TURN port that handles up to 1800 relays.
handling 1000 relays. On a Small/Medium system, there is a single TURN port that handles up to 1800 relays.
You can see a summary of all of the call and TURN relay licenses installed on each cluster peer by going to the Option
keys page and scrolling down to the Current licenses section.
keys page and scrolling down to the Current licenses section.
If the call media traverses the cluster peers, or if either endpoint is registered with ASSENT or H.460 capability :
Call Status
Call status information can be displayed for both current and completed calls:
■
Current calls: the Call status page (Status > Calls > Calls) lists all the calls currently passing through the
Expressway.
Expressway.
■
Completed calls: the Call history page (Status > Calls > History) lists all the calls that are no longer active.
The list is limited to the most recent 500 calls, and only includes calls that have taken place since the
Expressway was last restarted.
The list is limited to the most recent 500 calls, and only includes calls that have taken place since the
Expressway was last restarted.
If the Expressway is part of a cluster, all calls that apply to any peer in the cluster are shown, although the list is
limited to the most recent 500 calls per peer.
limited to the most recent 500 calls per peer.
Call summary information
The following summary information is displayed initially:
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Cisco Expressway Administrator Guide
Overview and Status Information