IP addressing
Issue 3.4.1 June 2005
289
Cisco switches behave differently in this scenario, depending on the hardware platforms and
OS versions.
Table 70: Cisco hardware characteristics
shows Avaya’s laboratory test results
with a sample of hardware platforms and OS versions.
Note:
Note:
Setting a Layer 2 priority is only useful if QoS is enabled on the Ethernet switch.
Otherwise, the priority-tagged frames are treated no differently than clear frames.
See
Multi-VLAN example
for an example.
IP addressing
This section covers:
●
Overview of IP addressing
of IP addressing concepts, including classful addresses, RFC
1918, CIDR/VLSM
●
DHCP
●
Recommendations for IP Telephony
Table 70: Cisco hardware characteristics
Hardware platform /
operating system
Laboratory test results
Catalyst 6509
with CatOS 6.1(2)
Accepted VID zero for the native VLAN when 802.1Q
trunking was enabled on the port. In this case, all but the
native VLAN should be cleared off the trunk.
Catalyst 4000
with CatOS 6.3(3)
Did not accept VID zero for the native VLAN. Opened a
case with Cisco TAC, and TAC engineer said it was a
hardware problem in the 4000. Bug ID is CSCdr06231.
Workaround is to enable 802.1Q trunking, and tag with
native VID instead of zero. Again, clear all but the native
VLAN off the trunk.
Catalyst 3500XL
with IOS
12.0(5)WC2
Accepted VID zero for the native VLAN when 802.1Q
trunking was disabled on the port.
Conclusion
Note the hardware platform and the OS version, and consult
the Cisco documentation, or call TAC.
Содержание Application Solutions
Страница 1: ...Avaya Application Solutions IP Telephony Deployment Guide 555 245 600 Issue 3 4 1 June 2005 ...
Страница 20: ...About This Book 20 Avaya Application Solutions IP Telephony Deployment Guide ...
Страница 21: ...Issue 3 4 1 June 2005 21 Section 1 Avaya Application Solutions product guide ...
Страница 22: ...22 Avaya Application Solutions IP Telephony Deployment Guide ...
Страница 74: ...Avaya Application Solutions platforms 74 Avaya Application Solutions IP Telephony Deployment Guide ...
Страница 106: ...Call processing 106 Avaya Application Solutions IP Telephony Deployment Guide ...
Страница 124: ...Avaya LAN switching products 124 Avaya Application Solutions IP Telephony Deployment Guide ...
Страница 139: ...Issue 3 4 1 June 2005 139 Section 2 Deploying IP Telephony ...
Страница 140: ...140 Avaya Application Solutions IP Telephony Deployment Guide ...
Страница 186: ...Traffic engineering 186 Avaya Application Solutions IP Telephony Deployment Guide ...
Страница 204: ...Security 204 Avaya Application Solutions IP Telephony Deployment Guide ...
Страница 214: ...Voice quality network requirements 214 Avaya Application Solutions IP Telephony Deployment Guide ...
Страница 228: ...Avaya Integrated Management 228 Avaya Application Solutions IP Telephony Deployment Guide ...
Страница 239: ...Reliability Issue 3 4 1 June 2005 239 Figure 69 S8700 Media Server in a high reliability configuration ...
Страница 274: ...Reliability and Recovery 274 Avaya Application Solutions IP Telephony Deployment Guide ...
Страница 275: ...Issue 3 4 1 June 2005 275 Section 3 Getting the IP network ready for telephony ...
Страница 276: ...276 Avaya Application Solutions IP Telephony Deployment Guide ...
Страница 350: ...Implementing Communication Manager on a data network 350 Avaya Application Solutions IP Telephony Deployment Guide ...
Страница 356: ...Network recovery 356 Avaya Application Solutions IP Telephony Deployment Guide ...
Страница 366: ...Network assessment offer 366 Avaya Application Solutions IP Telephony Deployment Guide ...
Страница 367: ...Issue 3 4 1 June 2005 367 Appendixes ...
Страница 368: ...Appendixes 368 Avaya Application Solutions IP Telephony Deployment Guide ...
Страница 394: ...Access list 394 Avaya Application Solutions IP Telephony Deployment Guide ...
Страница 414: ...DHCP TFTP 414 Avaya Application Solutions IP Telephony Deployment Guide ...