Cisco E20 - Appendix; Future Medianet Applications

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Cisco IP Video Phone E20 Administrator guide
D143 30.12 Administrator guide Cisco IP Video Phone E20, TE4.1 November 2011.
All contents are Copyright © 2010–2011, Cisco Systems, Inc. All rights reserved.
Future Medianet Applications
The above benets of CDP have been available for years
from Cisco. Medianet is a new concept aimed at fur-
ther extending and automating the interactions between
endpoints and the network in order to deliver additional
end-to-end optimization of multimedia trac across an
intelligent internetwork. CDP is one protocol, among oth-
ers, that will be leveraged by future generations of Cisco
IOS Software and Cisco Medianet-ready endpoints to de-
liver on this vision. Available Medianet applications at the
time this document was written include end-to-end trac-
ing of the path a video session takes through a network
in order to pinpoint the source of packet loss, optimizing
the routing of video packets over alternate paths in order
to maximize the throughput of the network, enhanced
Session Admission Control in order to control the amount
of video sessions admitted onto the network, and more.
Futher information about Medianet can be found at
http://www.cisco.com/en/US/netsol/ns1094/index.html
More information about CDP and LLDP-MED can be found
at the following references
http://www.cisco.com/en/US/docs/ios/netmgmt/congu-
ration/guide/nm_cdp_discover_ps6350_TSD_Products_
Conguration_Guide_Chapter.html
http://www.cisco.com/en/US/products/hw/switches/
ps663/products_tech_note09186a0080094713.
shtml#cdp
http://www.cisco.com/en/US/technologies/tk652/tk701/
technologies_white_paper0900aecd804cd46d.html
CDP Behavior in Release TE4.0
When the Cisco E20 running release TE4.0 is booted for
the rst time, or after a factory reset has been done, the
following settings are applied by default:
xConguration Provisioning Mode: Auto
xConguration Network 1 VLAN Voice Mode: Off
xConguration Network 1 VLAN Data Mode: Off
The E20 then displays the Provisioning Wizard screen to
prompt the user for what provisioning mode they would like
to use: VCS, Callway, CUCM, Broadsoft, HTTP, or Manual.
If CUCM is selected by the user, then xConguration
Provisioning Mode is automatically set to CUCM, xCon-
g uration Network 1 VLA N Voice Mo de and xCon-
g uration Network 1 VLA N Data Mod e are automati-
cally changed to Auto, and the phone begins utilizing CDP
to automatically discover its VLAN and begins tagging its
packets with the appropriate VLAN ID.
If the xConguration Provisioning Mode is set
to TMS, VCS, Callway, Broadsoft or Manual, then
xConguration Network 1 VLAN Voice Mode and
xConguration Network 1 VLAN Data Mode are left
in their default state of Off, and the phone will ignore any
CDP VLAN advertisements and not tag its packets with
any VLAN ID.
For TMS/VCS customers, this behavior preserves the
functionality they had in previous software releases of the
E20 so that the endpoint will continue to use untagged
packets and remain on the VLAN it is currently using. If
CDP is desired, then it may be manually enabled by set-
ting the xConguration Network 1 VLAN Voice Mode
and xConguration Network 1 VLAN Data Mode
parameters to Auto.
For CUCM customers, this behavior does present an extra
step in the rst-time bootup process, but once CUCM
mode has been chosen in the Startup Wizard, CDP will
automatically kick in and the phone will join the auxiliary
(voice/video) VLAN. If the customer desires the E20 to
not use CDP, then it may be manually disabled by setting
the xConguration Network 1 VLAN Voice Mode and
xConguration Network 1 VLAN Data Mode param-
eters to Off.
For customers who do not have a CDP-capable Ethernet
switch, but desire to use 802.1Q VLANs, the xCongura-
tion Network 1 VLA N Voice Mod e and xCongura-
tion Network 1 VLA N Data Mod e parameters may
be set to Manual, and the associated xConguration
Network 1 V L AN Voice ID and xConguration Net-
work 1 V LAN Data ID parameters may be set to their
appropriate values.
Once these parameters are set, the settings are saved
and are persistent through subsequent reboots. If a user
later wishes to change them, they may do so by re-
running the Startup Wizard, or by manually setting the
parameters individually.
Upgrades to TE4.0 from a Previous Release
For existing customers upgrading to release TE4.0 from
a previous release, the existing values for these param-
eters will be maintained, the Startup Wizard will not be
displayed, and no change in behavior will be seen by the
user. Note however that the values of the xCongura-
tion Network 1 VLA N Voice Mode and xCongura-
tion Network 1 VLA N Data Mod e parameters have
changed. In previous releases, the valid values for these
parameters were Untagged or Tagged, with Untagged
behind the default. In release TE4.0, with the introduction
of CDP support, the valid values for those parameters are
now [Auto|Manual|Off]. During an upgrade, the previous
values are automatically mapped to the new equivalent
values.
Table 1 below illustrates the relationship between the old
and new values.
Prior Releases Release TE4.0.0 Comments
Auto Auto mode is introduced in release TE4.0.0
Tagged Manual Manual is the same as Tagged in prior releases
Untagged O O is the same as Untagged in prior release
Table 1: E20 Old and New VLAN Tagging Values