Cisco switch configuration best practices. Here are 10 best practices for configuring Cisco switches.

Cisco switch configuration best practices. This guide provides best practices for using virtual Port Channels (vPCs) on Cisco Nexus® 7000 Series Switches. x (Catalyst 9400 Switches) Chapter Title. Jul 31, 2024 · Implementing Cisco switch configuration management best practices is essential for maintaining a resilient, secure, and efficient network. PDF - Complete Book (2. 21 eq 8443 Oct 30, 2020 · Cisco ISE already provides default configuration for password policies which enhances your security. Dec 3, 2018 · Configuring a Cisco switch properly means your network can make connections efficiently. WCCP has limitations when used with a Cisco Adaptive Security Appliance (ASA). Device such as switches, routers, and firewalls may be in secured locations or offsite so knowing what is connected to speeds up troubleshooting. 2 Oct 15, 2024 · Download practice topology for basic switch configuration. All ports need to be assigned to one or more than one VLAN, including the native VLAN. For details about this recommended authorized option, please visit Packet Tracer and Alternative Lab Solutions . Site C is setup as access ports, has QoS enabled and has port security configured. If require, you can download the latest as well as earlier version of Packet Tracer from here. Mar 5, 2022 · Switch(config-if-range)# exit Switch(config)# Switch(config)#int twe1/0/48 Switch(config-if-range)# stackwise-virtual dual-active-detection WARNING: All the extraneous configurations will be removed for TwentyFiveGigE1/0/48 on reboot. Customers with third-party support agreements are encouraged to contact their service providers for assistance in securing their devices. INFO: Upon reboot, the config will be part of running config but not part of start up config. 168. 4(3) or later. Chapter Title. What are the best practices to follow in this situation to allow for the ideal setup? Right now I just have the ports on the two switches with the Discover the essential CLI switch commands and the 11 configuration steps necessary to configure and manage a Cisco switch. ISE Licensing. ip access-list ext ACL-DEFAULT deny udp any any eq domain deny udp any eq bootpc any eq bootps deny tcp any host 10. Apr 18, 2024 · Cisco IOS XE Software Configuration Management. Switch1 (Interfarce Gig1/1) is connected with Switch2 (Interface Gig1/1) via cross cable. It is considered a best practice. It is a proven and tested way to improve network security, performance, and availability. ) during daily operation Oct 26, 2020 · The access switch needs to have AAA, RADIUS and interface configuration deployed and ISE needs to have the network devices and authentication and authorization rules added. Sep 29, 2013 · This is a summary and command reference for Cisco Switch Security Best Practices from the Cisco CCNP material. 72 MB) PDF - This Chapter (1. Best of luck on your exam preparation! Regards, Rigo. You can easily modify this default configuration, from the corresponding detailed configuration screens. Jul 30, 2021 · To configure this timer on a Cisco IOS switch, enter the following command: SW(config-if)# dot1x max-reauth-req count. As a best practice, VSAN 1 should be used as a staging area for un-provisioned devices and other VSAN(s) should be created for the production environment(s). Jan 3, 2014 · Site A config is setup to trunk and has QoS configured. CISCO SWITCH BEST PRACTICES GUIDE Table of Contents (After Clicking Link Hit HOME to Return to TOC) 1) Add Hostname . Nov 29, 2007 · This document discusses the implementation of Cisco Catalyst series switches in your network, specifically the Catalyst 4500/4000, 5500/5000, and 6500/6000 platforms. My question is, what is the best practi Dec 6, 2023 · Nexus 9000 Series Switches Release Notes; Cisco Nexus 9000 Series NX-OS VXLAN Configuration Guide, Release 9. 10 <- assign the internal AAA server Router(config)# tacacs-server key ‘secret-key’ <- secret key configured on AAA server Router(config)# line vty 0 4 May 15, 2024 · On the Switching > Monitor > Switch ports page of the child network, configure the switch ports of the new switch based on the configuration gathered in Step 4. Router(config)# aaa authentication login default group tacacs+ enable <-Use TACACS for authentication with “enable” password as fallback Router(config)# tacacs-server host 192. Steps to configure Cisco switch using CLI Step 1: Use an external emulator such as Telnet or a PuTTY to login to the switch. Use this document in conjunction with the complete Cisco Nexus 7000 Series documentation, which you will find Nov 3, 2024 · In this edition of Cisco Tech Talk, I'll explain some best practices for VLAN configuration on Cisco Business Switches. we have seen some difference in flow-control configuration of Switch interfaces and not sure if this is ok ? 2 x Nexus 5596UP (L2 only) and Cisco Catalyst 6504(Layer 3) core with 10G int to the 5596UP Jan 21, 2021 · Table3: Deployment Configuration best practices. 73 MB) Sep 25, 2024 · Specific best practices for WCCP configuration vary based on the platform used. Namely, client IP spoofing is not supported. Cisco Business routers come with VLAN 1 assigned to all ports by default. Choosing a site profile as part of Quick Setup allows you to configure your device based on the business needs of your enterprise. Some of these can also be applied to a Cisco router. Learn the basics of setting up a new Cisco switch with eight simple steps. 58 MB) PDF - This Chapter (202. Security Best Practices in Catalyst Campus Switches • Secure Switch Configuration • Defaults change depending on switch; always check: From the Cisco docs Nov 8, 2021 · Here are my notes for the basic minimum Cisco switch best practices for configuration and security. Once complete, navigate back to the switch template details page from Step 4 and ensure that the local overrides between the old and new switch match. With each VSAN having its own zones and zone-sets, Cisco MDS switches enable secure, scalable and robust networks. The strategic application of regular backups, version control, and compliance auditing not only secures your network but also ensures it aligns with business needs and regulatory requirements. Site B config is setup as access ports, but no QoS. The documentation set for this product strives to use bias-free language. Bias-Free Language. If you have for example an access switch connecting to one or 2 other switches in the core, the spanning tree will block one link while the other one is forwarding. SW(config-if)#authentication priority dot1x mab Apr 23, 2015 · We believe those familiar with configuring Cisco devices for normal network operation should be able to implement these best practices with limited effort. That is, one should manage be exception rather than try and comb through pages of logs each day. So, it all depends on your design. Best Practice #2 - Default VLAN 1 and Unused Ports. Feb 17, 2022 · Cisco Password Types: Best Practices Three years ago, the Department of Homeland Security (DHS) released an alert on how cyber adversaries obtained hashed password values and other sensitive information from network infrastructure configuration files. 1. . Cisco Learning Network Moderator Jul 7, 2015 · We need to set up an LACP Port Channel to connect to an EMC Datamover. 7 Patch 2, and 3. We currently have Distro switches that host isolated networks that do not live on the core switch. Ideally, the switch designated as the root should be one which sees minimal changes (config changes, link up/downs etc. Such features include functionality to archive configurations and to rollback the configuration to a previous version as well as create a detailed configuration change log. For more information about spanning-tree root on distribution switches, see the “Spanning VLANs across Access Layer Switches” section of the Campus Network Find out how to set up switch stacking in our informative best practices guide with example commands using a Cisco Catalyst 9000 series as a reference. This first section of configuration covers some general good practices when it comes to managing local passwords. First: interface Port-channel1 switchport access vlan 60 switchport mode access! interface GigabitEthernet1/0/46 switchport access vlan 60 Jul 16, 2021 · From the Cisco ACI Fabric Endpoint Learning Whitepaper – “Although Cisco ACI can detect MAC and IP address movement between leaf switch ports, leaf switches, bridge domains, and EPGs, it does not detect the movement of an IP address to a new MAC address if the new MAC address is from the same interface and same EPG as the old MAC address Going to join a Network Engineer in an MSP. Jan 27, 2020 · This keeps the traffic on that trunk only for the VLANs the user specifically wants. The dot1x method is also the default of all Cisco Switches. While BPDU Guard should be configured along with PortFast to shut down PortFast-enabled ports if they receive a BPDU. What are some good design practices you have used to have a single port always the primary elec Aug 9, 2016 · In order to have URL-Redirection on the switch for Web-Auth, you must enable HTTP/HTTPs on the switch. 3 Features Incompatible with Multicast None. Configurations and commands are discussed under the assumption that you are running Catalyst OS (CatOS) General Deployment software 6. 1x Monitor Mode The Cisco Learning Labs are not free but they provide guided virtual practice labs powered by real Cisco IOS with objectives and solutions. 802. Configure secure passwords * Use the enable secret command to set the enable password * Use external AAA servers for administrative access * Use the service password-encryption command to prevent casual observers from seeing Dec 1, 2015 · Cisco Catalyst 3850 Series and Cisco Catalyst 3650 Series Switches Best Practices Guide. What would be the best practice configuration. Here is a sample configuration for a Cisco Catalyst 9500 Series Switch acting as default gateway and DHCP relay for the wireless client traffic in VLAN 210: interface Vlan210 Jun 19, 2019 · switch-config-descriptors. Oct 18, 2024 · Integration with Router-switch. Thanks!. For the purposes of this documentation set, bias-free is defined as language that does not imply discrimination based on age, disability, gender, racial identity, ethnic identity, sexual orientation, socioeconomic status, and intersectionality. The recommended best practice is a default zone deny, this is also the default zoning configuration on Cisco SAN switches. You also need to define ACL local default ACLs on your switch: ip http server ip http secure-server. Cisco IOS XE Software includes several features that can enable a form of configuration management on a Cisco IOS XE device. Here is what I would suggest: description DATA/VOICE/WIFI VSAN 1 is created on the Cisco MDS switch by default and cannot be deleted. To conclude this chapter, a list of best practices is presented here for implementing, managing, and maintaining secure Layer 2 network: Manage the switches in a secure manner. Options/Notes Jan 26, 2018 · Bias-Free Language. I have found 2 in my research: Should we use switchport mode trunk or switchport mode access. 1. The macro helps with config consistency (locally only). 2(x) - section on vPC Fabric Peering; Configure EVPN Vxlan IPV6 Overlay Configuration Example; Design and Configuration Guide: Best Practices for Virtual Port Channels (vPC) on Cisco Nexus 7000 Series Switches - N7k and N9k vPC theory is Jul 16, 2020 · I have a need to create redundant links to other switches for a mesh topology; however, I know spanning tree would elect different interfaces on Root and Blocking ports, yet I am new trying to tweak STP. Let me enlighten about best practices to handle this bulk numbers of switch configuration, troubleshooting tasks. These include Sep 12, 2024 · In Cisco IOS Software Release 12. Once the hashes were obtained, the adversaries were able to compromise network devices. The best practice is to set this option to Strict. Aug 17, 2017 · Spanning tree will prevent loop when there are multiple connections between the switches or multiple switches are daisy changed together. For example, use SSH, authentication mechanism, access list, and set privilege levels. Figure 1 shows the topology with three Cisco Catalyst 3550 switches that have been used. Mar 14, 2017 · Solved: We are deploying a temporary solution and trunking one switch to another via x-over cable. In new job i have to deal with 200/300 numbers of Switch from Cisco, Juniper. The best practice is to always prefer the stronger authentication method (dot1x). May 11, 2008 · These best practices focus on the configuration requirements, recommendations, and restrictions that apply to Catalyst 6500 switches in the network. Jan 11, 2024 · Make sure the switches are powered down for this. 0). Nov 15, 2022 · Cisco switches are powerful and versatile tools that can be used to manage small to medium-sized networks. Use Case 5 - Stage 2 discovery probes are responsed to by a different server than the client is authenticated with (Pre 2. com offers an excellent range of stackable switches: Cisco Catalyst 9300 Series: Cisco C9300-24T-A; Cisco C9300-48P-E; Explore more offerings here: Cisco Network Switches: Find high-performance switches tailored to your network needs. In this topology. Refer to Administration > Settings > Admin > password policies for ISE admin users’ password policies, account disable policies and lock/suspend settings and Administration > Identity management > settings > User authentication settings for Nov 8, 2009 · Actually, when dealing with best and leading practices the opposite is true for the long run. 4. Oct 2, 2024 · Bias-Free Language. Most network administrators today use the secret parameter when configuring the Enable password or a local user account’s password on Cisco switches and routers today. com. Jan 11, 2023 · We are currently setting up NTP on a rather large network, 600+ Cisco Devices. For example, port- security on Cisco switches can be used to stop MAC-flooding attacks or prevent non-authorized hosts to connect to the switch. There are three trunk links as shown in Figure 1: SW1 Fa0/1 – SW2 Dec 1, 2015 · For more information about spanning tree root configuration on the VSS, see the “Spanning Tree Configuration Best Practice with VSS” section of the VSS Enabled Campus Design Guide. ISE requires one or more of the following three license packages to service wired endpoints: Base; Plus; Apex We will focus on Spanning Tree Protocol (STP) configuration and verification commands in this tutorial, as implemented on Cisco switches. Feb 21, 2024 · It provides a high level overview and F5 specific configuration of a best practice design for ISE deployments in a load balanced environment. By building and maintaining configuration management best-practices, you can expect several benefits such as improved network availability and lower costs. We are configuring NTP on the core switch and pointing devices to that IP address. Figure 1 Spanning Tree Protocol on Cisco Switches. Follow the commands and examples to create VLANs, assign ports, enable SSH, and more. Jan 11, 2024 · Make Catalyst the root switch. For Cisco Catalyst® switches, best practices are documented in Cisco Catalyst Instant Access Solution White Paper. A Cisco switch deployment best practice is a preferred configuration method to employ on your Catalyst switches. A best practice configuration includes an explanation of why you should perform a given task and a sample snapshot Mar 29, 2024 · Based on the site profile you choose, your device is automatically configured according to Cisco best practices. Setting COOP Group to Strict enables the Cisco ACI switch nodes to use MD5 authentication for all COOP communication to ensure that Cisco ACI switch nodes will exchange COOP database information only between the switches in the same fabric. 6. Global command to enable BPDU Guard on all ports where STP PortFast is enabled: Switch(config)# spanning-tree portfast bpduguard default switch, or a switch stack. Site C also uses a macro for the port config. Download Packet Tracer. Mar 27, 2023 · As best security practice, assign all used switch ports to particular VLANs, except VLAN 1. Here are 10 best practices for configuring Cisco switches. With default one deny no end-device communication is possible unless explicitly and manually zoned. Stored manually or automatically, the configurations in this archive can be used to replace the current running configuration with the configure replace filename Jun 27, 2024 · If the DHCP server is not present on the client VLAN (which is usually the case), it’s recommended that you enable the DHCP relay function on the upstream switch. Where System > System Settings > COOP Group. Although some design considerations are presented, this document does not cover Jan 24, 2016 · Hi! I was wondering if there is a best practice for Cisco switch to VMWare connectivity? I've seen people mostly do Etherchannel but what about load balancing? Which etherchannel load balancing method is the best? Please share your experience if possible. In this step-by-step guide, we walk you through configuring Cisco switches and look at some FAQs. Sep 5, 2017 · Book Title. As best practice, stacking should be set up in a full ring topology by connecting stack port "one" of one switch to stack port "two" of the next switch, continuing this pattern the whole way through the stack, and finishing with the bottom switch connecting to the top switch to complete the ring. 100. Set root switch priority to “0 - likely root” Higher end models such as the MS410, MS425 deployed at core or aggregation are suitable candidates for the role. Today the last PC got moved off of VLAN 1 on the downstream switch and immediately we lost remote connection. Initial Switch Configuration. Two 2960 Series switches are used. Mar 14, 2024 · Bias-Free Language. Within SDA, the total switch configuration is orchestrated by Cisco Catalyst Center as are the network devices in ISE. The switch is up and operational but I have no connectivity. 3(7)T and later, the Configuration Replace and Configuration Rollback features allow you to archive the Cisco IOS device configuration on the device. Cisco ISE licensing provides the ability to manage the application features and access, such as the number of concurrent endpoints that can use Cisco ISE network resources. switchport mode access Nov 12, 2006 · Configuration management is a collection of processes and tools that promote network consistency, track network change, and provide up to date network documentation and visibility. Configuring QoS. To explore and acquire Cisco switch stacking solutions, Router-switch. jpg (Cisco configuration example) I can’t stress enough how important descriptions are for ALL devices when possible. 6 Patch 6, 2. End Device Port Security: interface GigabitEthernet1/1. 0 KB) View with Adobe Reader on a variety of devices Oct 8, 2009 · Switch(config-if)# spanning-tree portfast disable . Quality of Service (QoS) Configuration Guide, Cisco IOS XE Everest 16. Feb 14, 2020 · Every router and switch has a Loopback assigned for us to connect. At one store we have the router and 2 switches, think a main backbone (L3 - 3850)and a downstream (L3-3750). I have experience on Cisco Switch configuration, VLAN Configuration. It is important to understand each command or configuration before applying it to a switch in production. Aug 4, 2021 · Hi, may you advise on Cisco Flow-control best practice for Nexus 55xx and Catalyst 65xx connection. In MAC-flooding, an attacker can connect a laptop into an empty Switch port or empty RJ45 wall socket, and he can use hacking tools to generate millions of Ethernet frames with fake source MAC Mar 24, 2022 · General Password Settings. The Cisco switch configuration interface can be accessed using a Layer 2 Security Best Practices. rzcn hjtr fwzmaqk xjuqfv vlwkt piqydb ggicsj szjb dcq yuasrue