Demo Lab Guide Campus Networking - Amazon S3 Dell Demo Center – | Dell Inc., 2016 Demo Lab Guide...

1 Dell Demo Center – https://demos.dell.com | Dell Inc., 2016

Demo Lab Guide – Campus Networking

MLAG with Routed VLT and MLAG with VRRP

Product Domain: Networking

Author: Dustin Cardoza

Version: 1.01 Date: March 2013

https://demos.dell.com/


Table of Contents 1 Product Overview ................................................................................................................................................ 3

1.1 Lab Preparation Considerations and Caveats ...................................................................................... 4

2 Introduction .......................................................................................................................................................... 5

2.1 Lab Topology and Essential Information .............................................................................................. 5

2.1.1 Lab Addressing and Login Details .......................................................................................................... 8

2.1.2 Element Access ......................................................................................................................................... 8

3 Campus Networking -MLAG ............................................................................................................................ 11

3.1 Demo Setup – Routed VLT or VRRP with MLAG ................................................................................ 11

3.1.1 Setup for S4810-1 Core Switch ............................................................................................................. 11

3.1.2 Setup for S4810-2 Core Switch ............................................................................................................ 14

3.1.3 Setup for the N4032-1 aggregation switch ........................................................................................ 18

3.1.4 Setup for the N4032-2 aggregation switch ....................................................................................... 20

3.1.5 Setup for Server Switch .......................................................................................................................... 21

3.1.6 Setup Client C3750 switch .................................................................................................................... 22

3.1.7 Run iPerf between Server and Client VM’s ......................................................................................... 22

3.1.8 Useful commands ................................................................................................................................... 24



1 Product Overview

N-Series is a family of energy-efficient and cost-effective 1GbE and 10GbE switches designed for

modernizing and scaling network infrastructure.

- Use MLAG for multipath loop-free redundancy without spanning tree to enable full-bandwidth

utilization and high availability.

- Promote greater interoperability through interfaces with Cisco's Rapid Per VLAN Spanning Tree

(RPVST+)1 and devices using Cisco Discovery Protocol (CDP).



-

1.1 Lab Preparation Considerations and Caveats

It is in your best interests to ensure the demo environment you will be demonstrating is clean & tidy

before you begin. For this reason we would recommend, where possible, you log in to your demo at least

15 minutes prior to delivery and check the following;

1. Familiarize yourself with the environment during this time and check any specific features you are

expecting to demo.

2. Most importantly, be crystal clear with yourself on what it is you plan to show. A full demo of every

feature described below (with questions) can take several hours. If you only have a short time slot be

sure to focus on the key points that address the customer’s pain points and will drive value home to

them.

3. Ensure that you have scheduled the demo for sufficient time so as not to have the demo end before

you are finished with the customer.

Any other guidance on how the user should prepare for the lab can be added here. If there are limitation

or something the user should be aware of call out also.



2 Introduction

The demo provides a number of uses cases for consumption through both customer facing demos and

self-study labs for learning more about our products and the features they provide. At release there are

two scenarios covered in the environment:

- MLAG with Routed VLT

- MLAG with VRRP

- Wireless with W-ClearPass Access Management

I

In addition interoperability into an existing Cisco environment is demonstrated as an element of the

overall demo lab. The demo guide also covers the different options available for demo consumption:

- Build it yourself

- configured

2.1 Lab Topology and Essential Information

As of April 2014, there are a total of 4 hardware pods, each consisting of:

2 – S4810 Core Switches (with VLT)

1 – S4810 Server Access Switch

2 – N4032 Campus Aggregation Switches (with MLAG)

1 – C3750 Client Access Switch

1 – Server VM

1 – Client VM



2.1.1 Lab Addressing and Login Details

2.1.2 Element Access

Using the Landing VM with RDM

New for 2014 is the use of Remote Desktop Manager (RDM). RDM is a simple tool to provide quick access

to all of the pod hardware from a single tabbed window. All demos are accessible from RDM and each

demo is grouped into a single folder on the left -hand side of the screen. These folders can be expanded

for each demo, and the hardware access to each device is achieved by simply double-clicking on the item.

Here is a screenshot. The red items are all part of Demo 1, while the Green can be expanded to access the

hardware in Demo 2. Each section has an icon to fully deploy the working configs or to reset the switches

back to a base config with only IP, username, and password configured.

Device Ip Address Mask Gateway

POD Landing VM 172.20.3.10 255.255.255.0 172.20.3.1

Server Switch 172.20.3.210 255.255.255.0 172.20.3.1

S4810-1 172.20.3.211 255.255.255.0 172.20.3.1

S4810-2 172.20.3.212 255.255.255.0 172.20.3.1

N4032-1 172.20.3.213 255.255.255.0 172.20.3.1

N4032-2 172.20.3.214 255.255.255.0 172.20.3.1

C3750 172.20.3.219 255.255.255.0 172.20.3.1

Server VM 192.168.3.8 255.255.255.0 192.168.3.1

Client VM 192.168.1.19 255.255.255.0 192.168.1.1



When an item is accessed, it will appear as a tab at the top of the RDM window. You can have a separate

tab for each type of connection, such as SSH, HTTP, RDP, etc… Below is a screenshot of RDM with several

connections open. Notice the tabs.


If you want to reset to a base config or reset to a working demo config, simply run the appropriate icon for

that group and watch for the process to complete. All demos utilize the same switch hardware, so if you

cannot run both demos at once. For example, if you want

to run he RVLT demo, you will need to run “Deploy Lab – Routed VLT with MLAG”. After that demo, you

can run “Deploy Lab – VRRP with MLAG” to do the VRRP version of the demo. It takes approximately 5

minutes to deploy the hardware for a given demo.

3 Campus Networking -MLAG

3.1 Demo Setup – Routed VLT or VRRP with MLAG

This demo will walk you through the process of setting up the switches manually for RVLT with MLAG or

VRRP with MLAG. Keep in mind that you can fully deploy either configuration by using the “Deploy Lab”

Icon from the correct group.

MLAG is configured on the N4032 campus aggregation switches whether you are doing RVLT or VRRP.

RVLT or VRRP is configured on the S4810 campus core switches, depending on which demo you want to

run. The configs below show the setup for RVLT and the alternative VRRP where it applies.

The server switch and client switches do not run MLAG or VLT and the configs do not change for either

demo.

3.1.1 Setup for S4810-1 Core Switch

Access S4810-1 by double-clicking the connection inside RDM.

1. Configure the VLTi LAG.

interface Port-channel 128 description VLTi-LAG channel-member fortyGigE 0/60 no shutdown

2. From config mode, configure VLT with the following set of commands

vlt domain 555 peer-link port-channel 128 back-up destination 172.20.3.212 primary-priority 1 peer-routing

Note: this command is what enables RVLT, if you are doing VRRP, leave this command out

3. Configure the port-channel to the N-Series switches

interface fortyGigE 0/48 description Link-to-N4032-1 port-channel-protocol LACP port-channel 11 mode active exit protocol lldp advertise management-tlv system-name no shutdown intf-type cr4 exit interface fortyGigE 0/56 description Link-to-N4032-2 port-channel-protocol LACP port-channel 11 mode active exit protocol lldp advertise management-tlv system-name no shutdown intf-type cr4 exit interface Port-channel 11 description LAG-to-N4000's switchport lacp long-timeout vlt-peer-lag port-channel 11 no shutdown

4. Create the port-channel to the Server Switch

interface TenGigabitEthernet 0/47 description Link-to-Server_Switch port-channel-protocol LACP port-channel 111 mode active exit protocol lldp advertise management-tlv system-name no shutdown exit

interface Port-channel 111 description LAG-to-Server Switch switchport vlt-peer-lag port-channel 111 no shutdown exit

5. Configure the VLAN interfaces for RVLT

interface Vlan 192 description Campus_Clients ip address 192.168.1.1/24 tagged Port-channel 11 no shutdown exit interface Vlan 1920 description Server_VLAN ip address 192.168.3.1/24 tagged Port-channel 111 no shutdown end

a. Configure the vlans for VRRP instead of RVLT (for VRRP Demo)

interface Vlan 192 description Campus_Clients ip address 192.168.1.2/24 tagged Port-channel 11 vrrp-group 192 priority 99 virtual-address 192.168.1.1 no shutdown exit interface Vlan 1920 description DC_Clients ip address 192.168.3.2/24 tagged Port-channel 111 vrrp-group 20 priority 101 preempt virtual-address 192.168.3.1 no shutdown end

6. Save the config with the “write” command

3.1.2 Setup for S4810-2 Core Switch

Access S4810-2 by double-clicking the connection inside RDM.

1. Configure the VLTi LAG.

interface Port-channel 128

description VLTi-LAG channel-member fortyGigE 0/60 no shutdown

2. From config mode, configure VLT with the following set of commands

vlt domain 555 peer-link port-channel 128 back-up destination 172.20.3.211 primary-priority 2 peer-routing

Note: this command is what enables RVLT, if you are doing VRRP, leave this command out

3. Configure the port-channel to the N-Series switches

interface fortyGigE 0/48 description Link-to-N4032-1 port-channel-protocol LACP port-channel 11 mode active exit protocol lldp advertise management-tlv system-name no shutdown intf-type cr4 exit

interface fortyGigE 0/56 description Link-to-N4032-2 port-channel-protocol LACP port-channel 11 mode active exit protocol lldp

advertise management-tlv system-name no shutdown Intf-type cr4 exit

interface Port-channel 11 description LAG-to-N4000's switchport lacp long-timeout vlt-peer-lag port-channel 11 no shutdown

4. Create the port-channel to the Server Switch

interface TenGigabitEthernet 0/47 description Link-to-Server_Switch port-channel-protocol LACP port-channel 111 mode active exit protocol lldp advertise management-tlv system-name no shutdown exit

interface Port-channel 111 description LAG-to-Server Switch switchport vlt-peer-lag port-channel 111 no shutdown end

5. Configure the VLAN interfaces

interface Vlan 192 description Campus_Clients ip address 192.168.1.2/24 tagged Port-channel 11 no shutdown exit interface Vlan 1920 description Server_VLAN ip address 192.168.3.2/24 tagged Port-channel 111 no shutdown end

a. Configure the vlans for VRRP instead of RVLT (for VRRP Demo)

interface Vlan 192 description Campus_Clients ip address 192.168.1.3/24 tagged Port-channel 11 vrrp-group 192 priority 101 preempt virtual-address 192.168.1.1 no shutdown exit interface Vlan 1920 description DC_Clients ip address 192.168.3.3/24 tagged Port-channel 111 vrrp-group 20 priority 99 virtual-address 192.168.3.1 no shutdown

6. Save the config with the “write” command

3.1.3 Setup for the N4032-1 aggregation switch

1. Create VPC LAG starting in config mode

interface Te1/0/24 channel-group 128 mode active description "MLAG-Interconnect" udld enable udld port aggressive lldp transmit-tlv sys-name exit interface port-channel 128 description "MLAG-PEER-LAG" spanning-tree disable switchport mode trunk vpc peer-link exit

2. Configure VPC feature vpc vpc domain 1

role priority 1 peer-keepalive enable peer-keepalive destination 172.20.3.214 source 172.20.3.213 peer detection enable exit

3. Add vlan 192 and Configure port-channels to other switches

config vlan 192 exit interface Te1/0/7 channel-group 1 mode active d escription "to-Client-Switch" lldp transmit-tlv sys-name exit

interface port-channel 1 description "LAG-to-Client-Switch" switchport mode general switchport general allowed vlan add 192 tagged vpc 1 exit

interface Fo1/1/1 channel-group 11 mode active description "uplink_to_S4810-1" lldp transmit-tlv sys-name exit interface Fo1/1/2 channel-group 11 mode active description "uplink_to_S4810-2" lldp transmit-tlv sys-name exit interface port-channel 11 description "uplink_LAG_to_S4810s" switchport mode general switchport general allowed vlan add 192 tagged vpc 11 exit


3.1.4 Setup for the N4032-2 aggregation switch

1. Create VPC LAG starting in config mode

interface Te1/0/24 channel-group 128 mode active description "MLAG-Interconnect" udld enable udld port aggressive lldp transmit-tlv sys-name exit interface port-channel 128 description "MLAG-PEER-LAG" spanning-tree disable switchport mode trunk vpc peer-link exit

2. Configure VPC feature vpc vpc domain 1

role priority 2 peer-keepalive enable peer-keepalive destination 172.20.3.213 source 172.20.3.214 peer detection enable exit

3. Add vlan 192 and Configure port-channels to other switches

config vlan 192 exit Interface Te1/0/8 channel-group 1 mode active description "to-Client-Switch" lldp transmit-tlv sys-name exit interface port-channel 1 description "LAG-to-Client-Switch" switchport mode general switchport general allowed vlan add 192 tagged vpc 1 exit

interface Fo1/1/1 channel-group 11 mode active



description "uplink_to_S4810-2" lldp transmit-tlv sys-name exit interface Fo1/1/2 channel-group 11 mode active description "uplink_to_S4810-1" lldp transmit-tlv sys-name exit interface port-channel 11 description "uplink_LAG_to_S4810s" switchport mode general switchport general allowed vlan add 192 tagged vpc 11 exit

3.1.5 Setup for Server Switch

1. Configure LAG to Core Switches

interface TenGigabitEthernet 0/46 description Link-to-S4810-1 port-channel-protocol LACP port-channel 111 mode active no shutdown interface TenGigabitEthernet 0/47 description Link-to-S4810-2 port-channel-protocol LACP port-channel 111 mode active no shutdown interface Port-channel 111 description uplnk to S4810's switchport no shutdown

2. Configure VLAN 1920 for Server VM and Server switch port

interface TenGigabitEthernet 0/0 description Link-To-ServerVM portmode hybrid switchport no shutdown



exit interface Vlan 1920 tagged Port-channel 111 untagged TenGigabitEthernet 0/0 no shutdown end write

3.1.6 Setup Client C3750 switch 1. Configure vlan 192 and client facing port

config vlan 192 state active exit interface GigabitEthernet 1/0/1 switchport access vlan 192 switchport mode access no shut

2. Configure the Uplink ports and LAG interface GigabitEthernet1/0/7 switchport trunk encapsulation

dot1q switchport trunk allowed vlan 192 switchport mode trunk

channel-group 1 mode active no shut interface GigabitEthernet1/0/8 switchport trunk encapsulation dot1q switchport trunk allowed vlan 192 switchport mode trunk channel-group 1 mode active no shut interface Port-channel1 description Uplink-to-N4000's switchport trunk encapsulation dot1q switchport trunk allowed vlan 192 switchport mode trunk no shut

3.1.7 Run iPerf between Server and Client VM’s

This will generate traffic load between the client and server.



1. Start by connecting to the Server VM from inside RDM. Once connected, launch the “iPerf_Server –

Shortcut” from the desktop.

2. Now connect to the Client VM from within RDM.

3. Launch the “LOAD_TEST – Shortcut“ from the desktop.

4. If you like, you may also run a continuous ping from client to server at 192.168.3.8.

5. Next you can start to run some switch failures to test. One at a time, you can reload S4810-1, S4810-

2, N4032-1, N4032-2. Ensure that each node is back online for couple of minutes before reloading

the next one. You should see minimal traffic interruption during each.

6. You can also run link failures by determining what links are connected. Using LLDP is the quickest

way to determine the physical topology and what is connected where. Once you have identified



links between switches, you can play with failing over certain links then watching the traffic from

client to server.

3.1.8 Useful commands

S4810:

show vlt brief show vlt detail show interface status show vrrp brief show run int vlan 192 show run int vlan 1920 show vlan show lldp neighbors

N4032:

show vpc 1 show vpc 11 show running-config show lldp remote all

C3750:

show vlan show interface trunk show interface status


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