Cisco Systems OL-8978-02 manual Configuring the Auxiliary VLANs on Catalyst LAN Switches, 55-20

Models: OL-8978-02

1 56
Download 56 pages 57.47 Kb
Page 20
Image 20

Chapter 55 Configuring a VoIP Network

Configuring VoIP on a Switch

Slot

Inline Power Requirement/Usage :

 

 

Slot

CardType

Total Allocated

Max H/W Supported

Max H/W

Supported

 

 

 

 

 

To Module (Watts)

Per Module (Watts)

Per Port (Watts)

----

-------------------

-----------------

------------------

----------------

3

WS-X6548-RJ-45

31.08

315.84

15.400

6

WS-X6148-GE-TX

26.46

315.84

7.000

Console> (enable)

A partial-deny status indicates that some module ports are inline powered but not all the ports on the module are inline powered.

Configuring the Auxiliary VLANs on Catalyst LAN Switches

These sections describe how to configure auxiliary VLANs:

Understanding the Auxiliary VLANs, page 55-20

Auxiliary VLAN Configuration Guidelines, page 55-21

Configuring the Auxiliary VLANs, page 55-21

Verifying the Auxiliary VLAN Configuration, page 55-22

Disabling the Auxiliary VLANs Until an IP Phone is Detected, page 55-22

Understanding the Auxiliary VLANs

You can configure the switch ports to send CDP packets that instruct an attached Cisco IP Phone 7960 to transmit the voice traffic to the switch in these frame types:

802.1Q frames carrying the auxiliary VLAN ID and Layer 2 CoS set to 5 (the switch port drops all 802.1Q frames except those carrying the auxiliary VLAN ID).

Reset the Cisco IP Phone 7960 if the auxiliary VLAN ID changes.

Enter the set port auxiliaryvlan mod[/port] aux_vlan_id command.

Note We recommend that you use 802.1Q frames and a separate VLAN.

802.1p frames, which are 802.1Q frames carrying VLAN ID 0 and Layer 2 CoS set to 5 (enter the set port auxiliaryvlan mod[/port] dot1p command).

802.3 frames, which are untagged and carry no VLAN ID and no Layer 2 CoS value (enter the set port auxiliaryvlan mod[/port] untagged command).

Note The Cisco IP Phone 7960 always sets the Layer 3 IP precedence to 5 in the voice traffic.

 

Catalyst 6500 Series Switch Software Configuration Guide—Release 8.7

55-20

OL-8978-02

Page 20
Image 20
Cisco Systems OL-8978-02 manual Configuring the Auxiliary VLANs on Catalyst LAN Switches, Understanding the Auxiliary VLANs

OL-8978-02 specifications

Cisco Systems OL-8978-02 is a comprehensive training curriculum designed to enhance the skills and knowledge of network professionals seeking to advance their careers in network management and security. This curriculum offers a significant focus on Cisco networking technologies and concepts, ensuring that learners are well-equipped to handle the intricacies of modern network environments.

One of the primary features of OL-8978-02 is its in-depth coverage of foundational networking concepts, which are crucial for effective network administration. The curriculum includes detailed modules on networking fundamentals, such as OSI and TCP/IP models, LAN and WAN architectures, and network protocols. This solid foundation enables learners to understand how different networking components interact and function together, forming the backbone of corporate and enterprise environments.

In addition to foundational knowledge, OL-8978-02 integrates a strong focus on security technologies and practices. Considering the increasing prevalence of cyber threats, the course emphasizes the importance of implementing robust security measures. Participants will learn about firewalls, intrusion prevention systems, VPNs, and other critical security technologies. This focus ensures that learners are prepared to safeguard networks against evolving security threats, a necessity in today’s digital landscape.

Another distinguishing characteristic of the OL-8978-02 curriculum is its emphasis on hands-on experience. The program often includes practical labs and simulations, allowing participants to apply theoretical knowledge in real-world scenarios. This experiential learning approach is pivotal for solidifying skills and boosting confidence in network management tasks.

Furthermore, OL-8978-02 addresses the latest advancements in networking technology, including software-defined networking (SDN) and cloud computing. By introducing emerging technologies, this curriculum ensures that professionals remain ahead of the curve, ready to adapt to the future demands of networking.

Finally, Cisco Systems OL-8978-02 positions itself not only as an educational tool but also as a career catalyst, providing learners with skills that are highly sought after in the IT job market. Upon completion, participants often find themselves well-prepared for various Cisco certifications, which can enhance their employability and professional growth opportunities in a competitive landscape. Through its thorough approach, OL-8978-02 plays a vital role in shaping the next generation of network professionals.