Cisco Cisco Expressway Maintenance Manual
Field
Description
Protocol
Indicates the IP protocol supported by the Expressway:
■
IPv4: it only takes calls between two endpoints communicating via IPv4. It communicates
with other systems via IPv4 only.
with other systems via IPv4 only.
■
IPv6: it only takes calls between two endpoints communicating via IPv6. It communicates
with other systems via IPv6 only.
with other systems via IPv6 only.
■
Both: it takes calls using either protocol. If a call is between an IPv4-only and an IPv6-only
endpoint, the Expressway acts as an IPv4 to IPv6 gateway. It communicates with other
systems via either protocol.
endpoint, the Expressway acts as an IPv4 to IPv6 gateway. It communicates with other
systems via either protocol.
IPv4
gateway
gateway
The IPv4 gateway used by Expressway.
IPv6
gateway
gateway
The IPv6 gateway used by Expressway.
Advanced
Networking
Networking
Indicates whether the second LAN port has been enabled. This is done by installing the Advanced
Networking option key.
Networking option key.
LAN 1
Shows the IPv4 address and subnet mask, and IPv6 address of the LAN 1 port.
LAN 2
If the Advanced Networking option key has been installed, this shows the IPv4 address and subnet
mask, and IPv6 address of the LAN 2 port.
mask, and IPv6 address of the LAN 2 port.
DNS section:
Server 1..5
address
address
The IP addresses of each of the DNS servers that are queried when resolving domain names. Up to 5
DNS servers may be configured.
DNS servers may be configured.
Domain
Specifies the name to be appended to the host name before a query to the DNS server is executed.
page.
Resource Usage
The Resource usage page (Status > System > Resource usage) provides statistics about the current and cumulative
license usage for calls.
license usage for calls.
It shows current and peak (highest concurrent) usage broken down by:
■
Unified CM remote session calls
■
Rich media sessions
■
TURN relays (Expressway-E only)
It also displays resource and license usage information:
■
Monitored resource usage, expressed as a percentage of the system capacity.
■
Current and peak license usage, expressed as a percentage of the available licenses for each license type.
Each rich media session license allows either 1 video call or 2 audio-only SIP traversal calls. Hence, a 100 rich
media session license would allow, for example, 90 video and 20 SIP audio-only simultaneous calls. Any other
audio-only call (non-traversal, H.323 or interworked) will consume a rich media session license.
Each rich media session license allows either 1 video call or 2 audio-only SIP traversal calls. Hence, a 100 rich
media session license would allow, for example, 90 video and 20 SIP audio-only simultaneous calls. Any other
audio-only call (non-traversal, H.323 or interworked) will consume a rich media session license.
You can view details of current calls by clicking on the relevant item in the section.
All statistics are based on data since the system was last restarted. The information on this page refreshes
automatically every 5 seconds.
automatically every 5 seconds.
Clustered Expressway systems
If the Expressway is part of a cluster, details for each peer are shown as well as totals for the entire cluster.
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Cisco Expressway Administrator Guide