Cisco Systems 3750 Switchport trunk encapsulation dot1q, Switchport access vlan, No switchport

Page 7

description To 2950

switchport trunk encapsulation dot1q

!

!−−− Dot1q trunking (with negotiation) is configured on the L2 switch. !−−− If DTP is not supported on the far switch, issue the

!−−− switchport mode trunk command

!−−− to force the switch port to trunk mode.

!−−− Note: The default trunking mode is dynamic auto. If a trunk link !−−− is established using default trunking mode, it does not appear !−−− in the configuration even though a trunk has been established on !−−− the interface. Use the show interfaces trunk command to verify the !−−− trunk has been established.

!

interface GigabitEthernet1/0/2

!

!−−− Output suppressed.

!

interface GigabitEthernet1/0/5 description to SERVER_1

!−−− Configure the server port to be in the server VLAN (VLAN 3).

switchport access vlan 3

!−−− Configure the port to be an access port to !−−− prevent trunk negotiation delays.

switchport mode access

!−−− Configure port−fast for initial STP delay.

!−−− Refer to Using PortFast and Other Commands to Fix Workstation !−−− Startup Connectivity Delays for more information.

spanning−tree portfast

!

interface GigabitEthernet1/0/6

!

!−−− Output suppressed.

!

interface GigabitEthernet1/0/10 description To Internet_Router

!−−− Port connected to router is converted into a routed (L3) port.

no switchport

!−−− IP address is configured on this port.

ip address 200.1.1.1 255.255.255.252

!

interface GigabitEthernet1/0/21

!

!−−− Output suppressed.

!

Cisco − Configuring Inter−VLAN Routing with Catalyst 3750 Series Switches in a Stacked Configuration

Image 7
Contents Table of Contents Conventions IntroductionBefore You Begin Document IDBackground Theory Components UsedIP Routing on a Stack of 3750s Network Diagram ConfigureRelated Products Practical Tips Configurations No switchport Switchport trunk encapsulation dot1qSwitchport access vlan Switchport mode accessIp route 0.0.0.0 0.0.0.0 Ip address 10.1.2.1Ip address 10.1.3.1 Ip address 10.1.10.1Switchport access vlan 3 switchport mode access Cat2950#show running−configIp address 10.1.10.2 Ip default−gatewaySet interface sc0 10 10.1.10.3/255.255.255.0 Set vtp mode clientSet ip route 0.0.0.0/0.0.0.0 10.1.10.1 #set boot command Set vtp domain cisco∙ show ip route Verify∙ show vtp status ∙ show interfaces trunk∙ show vtp domain ∙ show trunk Troubleshooting ProcedureTroubleshoot Related InformationUpdated Mar 10 Document ID
Related manuals
Manual 176 pages 60.04 Kb

3750 specifications

The Cisco Systems 3750 series is a family of enterprise-class stackable switches that were designed to provide high-performance networking solutions for organizations requiring robust management features, security, and scalability. Known for their reliability and advanced capabilities, the 3750 series is particularly aimed at accommodating the demands of LAN environments in organizations ranging from small businesses to large enterprises.

One of the defining features of the Cisco 3750 series is its StackWise technology. This innovative feature enables the stacking of up to nine switches together, allowing them to function as a single logical unit. This results in simplified management, higher redundancy, and increased scalability. The StackWise technology allows for seamless failover and enhanced bandwidth between the stacked switches.

In terms of performance, the 3750 series supports Layer 2 and Layer 3 switching, offering routing capabilities to handle both traditional and modern network demands. It is equipped with advanced Quality of Service (QoS) features, ensuring that critical applications such as voice and video are prioritized for optimal performance.

The Cisco 3750 also features extensive security capabilities. It incorporates features such as IEEE 802.1X authentication, DHCP snooping, and dynamic ARP inspection to protect against unauthorized access and various network attacks. These enhancements help maintain data integrity and secure communications across the network.

Another noteworthy characteristic of the 3750 series is its support for Power over Ethernet (PoE). PoE allows for the delivery of power over Ethernet cables to connected devices, such as IP phones and wireless access points, facilitating simpler installations and reducing the need for additional power outlets.

The Cisco 3750 series also provides a comprehensive set of management tools. With features like Cisco's Embedded Event Manager (EEM) and extensive SNMP support, network administrators can efficiently monitor and manage network performance, troubleshoot issues, and maintain high availability.

Additionally, the series is compatible with Cisco's IOS software, which provides a rich set of features, including advanced routing protocols, multicast support, and extensive security options, further enhancing the functionality and versatility of the switches.

Overall, the Cisco Systems 3750 series stands out for its stackable design, high-performance features, security capabilities, and management tools, making it a popular choice for organizations looking for dependable and scalable networking solutions.