Cisco Systems 3750 manual Verify, ∙ show vtp status, ∙ show interfaces trunk, ∙ show ip route

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Verify

This section provides information you can use to confirm your configuration is working properly.

Certain show commands are supported by the Output Interpreter Tool ( registered customers only) , which allows you to view an analysis of show command output.

Catalyst 3750

show switch − The show switch command tells what the stack consists of and which of stack members is the master.

C3750G−24T#show switch

 

 

 

 

 

 

Current

 

Switch#

Role

Mac Address

Priority

State

−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−

*1

Master

000c.30ae.6280

15

Ready

2

Slave

000c.30ae.2a80

1

Ready

show vtp status

C3750G−24T#show vtp status

 

VTP Version

 

: 2

Configuration

Revision

: 3

Maximum VLANs

supported locally

: 1005

Number of existing VLANs

: 8

VTP Operating

Mode

: Server

VTP Domain Name

: cisco

VTP Pruning Mode

: Disabled

VTP V2 Mode

 

: Disabled

VTP Traps Generation

: Disabled

MD5 digest

 

: 0xA2 0xF4 0x9D 0xE9 0xE9 0x1A 0xE3 0x77

Configuration

last modified by 200.1.1.1 at 3−1−93 03:15:42

Local updater

ID is 10.1.2.1 on

interface Vl2 (lowest numbered VLAN interface found)

C3750G−24T#

 

 

show interfaces trunk

C3750G−24T#show interfaces trunk

 

 

Port

Mode

Encapsulation

Status

Native vlan

Gi1/0/1

desirable

802.1q

trunking

1

Gi2/0/1

desirable

802.1q

trunking

1

Port

Vlans allowed on trunk

 

 

Gi1/0/1

1−4094

 

 

 

Gi2/0/1

1−4094

 

 

 

Port

Vlans allowed and active in management domain

Gi1/0/1

1−3,10

 

 

 

Gi2/0/1

1−3,10

 

 

 

Port

Vlans in spanning tree forwarding state and not pruned

Gi1/0/1

1−3,10

 

 

 

Gi2/0/1

1−3,10

 

 

 

show ip route

C3750G−24T#show ip route

Codes: C − connected, S − static, I − IGRP, R − RIP, M − mobile, B − BGP

D − EIGRP, EX − EIGRP external, O − OSPF, IA − OSPF inter area

N1 − OSPF NSSA external type 1, N2 − OSPF NSSA external type 2

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

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Contents Table of Contents Introduction Before You BeginDocument ID ConventionsComponents Used Background TheoryIP Routing on a Stack of 3750s Configure Network DiagramRelated Products Practical Tips Configurations Switchport trunk encapsulation dot1q Switchport access vlanSwitchport mode access No switchportIp address 10.1.2.1 Ip address 10.1.3.1Ip address 10.1.10.1 Ip route 0.0.0.0 0.0.0.0Cat2950#show running−config Switchport access vlan 3 switchport mode accessIp default−gateway Ip address 10.1.10.2Set vtp mode client Set ip route 0.0.0.0/0.0.0.0 10.1.10.1 #set boot commandSet vtp domain cisco Set interface sc0 10 10.1.10.3/255.255.255.0Verify ∙ show vtp status∙ show interfaces trunk ∙ show ip route∙ show vtp domain Troubleshooting Procedure TroubleshootRelated Information ∙ show trunkUpdated Mar 10 Document ID
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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.