Chapter 7 Configuring VLANs on the ML-Series Card

Configuring IEEE 802.1Q VLAN Encapsulation

ML-Series switching supports up to 254 VLAN subinterfaces per interface. A maximum of 255 logical VLANs can be bridged per card (limited by the number of bridge-groups). Each VLAN subinterface can be configured for any VLAN ID in the full 1 to 4095 range. Figure 7-1shows a network topology in which two VLANs span two ONS 15310-CLs with ML-Series cards.

Figure 7-1 VLANs Spanning Devices in a Network

Host station

 

Host station

VLAN 10

 

VLAN 10

Fast Ethernet 1

 

Fast Ethernet 4

POS 0.10

VLAN 10

POS 0. 2

ML-Series

 

ML-Series

Fast Ethernet 2

VLAN 2

 

 

Fast Ethernet 3

 

 

 

 

 

VLAN 2

 

 

 

VLAN 2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Host station

Host station

124089

Configuring IEEE 802.1Q VLAN Encapsulation

You can configure IEEE 802.1Q VLAN encapsulation on either type of ML-Series card interfaces, Ethernet or Packet over SONET/SDH (POS). VLAN encapsulation is not supported on POS interfaces configured with HDLC encapsulation.

The native VLAN is always VLAN ID 1 on ML-Series cards. Frames on the native VLAN are normally transmitted and received untagged. On an trunk port, all frames from VLANs other than the native VLAN are transmitted and received tagged.

To configure VLANs using IEEE 802.1Q VLAN encapsulation, perform the following procedure, beginning in global configuration mode:

 

 

 

 

Command

Purpose

 

 

 

 

Step 1

 

 

 

 

 

 

ML_Series(config)# bridge

Assigns a bridge group (VLAN) number and

 

 

 

 

bridge-group-number protocol type

define the appropriate spanning tree type.

 

 

 

Step 2

 

 

 

 

 

 

ML_Series(config)# interface type number

Enters interface configuration mode to configure

 

 

 

 

 

the interface.

 

 

 

Step 3

 

 

 

 

 

 

ML_Series(config)# interface type

Enters subinterface configuration mode to

 

 

 

 

number.subinterface-number

configure the subinterface.

 

 

 

Step 4

 

 

 

 

 

 

ML_Series(config-subif)# encap dot1q

Sets the encapsulation format on the VLAN to

 

 

 

 

vlan-id

IEEE 802.1Q.

 

 

 

Step 5

 

 

 

 

 

 

ML_Series(config-subif)# bridge-group

Assigns a network interface to a bridge group.

 

 

 

 

bridge-group-number

 

 

 

 

 

 

 

 

 

 

 

 

 

Cisco ONS 15310-CL and Cisco ONS 15310-MA Ethernet Card Software Feature and Configuration Guide R8.5

 

 

 

 

7-2

 

 

 

78-18133-01

 

 

 

 

 

 

 

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Cisco Systems 15310-MA, 15310-CL manual Configuring Ieee 802.1Q Vlan Encapsulation
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15310-CL, 15310-MA specifications

Cisco Systems has established itself as a leader in the networking domain, offering a wide array of solutions to meet the needs of modern businesses. Among its impressive product lineup are the Cisco 15310-CL and 15310-MA routers, designed to provide advanced network performance and reliability.

The Cisco 15310-CL is a versatile platform that primarily serves as a carrier-class router aimed at supporting high-speed data and voice services. It is built to handle the demands of large enterprises and service providers, offering a robust design that ensures maximum uptime and performance. One of its standout features is its modular architecture, which enables users to customize their configurations based on specific application needs. This scalability allows for future expansion without the need for a complete hardware overhaul.

Key technologies integrated into the Cisco 15310-CL include high-density Ethernet interfaces and a comprehensive suite of Layer 2 and Layer 3 protocol support. The device is capable of supporting multiple types of connections, including TDM, ATM, and Ethernet. This flexibility makes it an ideal choice for organizations that require seamless migration between various service types. Moreover, with features such as MPLS (Multiprotocol Label Switching) support and advanced Quality of Service (QoS) mechanisms, the router ensures that critical applications receive the necessary bandwidth and low latency required for optimal performance.

In contrast, the Cisco 15310-MA focuses on access solutions, providing a cost-effective entry point for businesses looking to enhance their network capabilities. It is well-suited for smaller offices or branch locations that need reliable connectivity without the expense and complexity associated with larger systems. The device supports a range of access methods and provides essential features like firewall capabilities, VPN support, and comprehensive security measures to protect sensitive data.

Both models benefit from Cisco's commitment to security and manageability, offering features like enhanced encryption protocols and user authentication mechanisms that help safeguard networks against threats. Additionally, they can be managed through Cisco’s intuitive software tools, simplifying configuration and monitoring tasks for IT administrators.

The Cisco 15310-CL and 15310-MA are ideal solutions for businesses seeking to enhance their network infrastructure, ensuring firms can keep pace with evolving technology demands while maintaining a focus on security and performance. Their combination of advanced features, modular capabilities, and robust support makes them valuable assets in the networking landscape.
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