Protocol – Router Switch Blog

11 Protocols of IoT You need to know

Posted on September 5, 2019 by RS-Tech | 0 Comments

If you are interested in IoT, do you know those protocols of IoT? As we all know, WiFi, Bluetooth, ZigBee are the communication technologies, but there are also other new selections. Let’s discuss this topic now. Bluetooth The important short-range…

PoE vs. PoE+. The Main Features Comparison

Posted on December 13, 2017 by RouterSwitch Tech | 0 Comments

What is PoE? What is PoE+? PoE vs. PoE+: What’s the difference? These common questions are always being asked by network device buyers. Here we have summarized the main features between PoE and PoE+, which can help you choose PoE…

Top Commands for Verifying Cisco Switch Network Status and Operational State

Posted on December 30, 2016 by RouterSwitch Tech | 0 Comments

How to use correctly to maintain your Cisco network? When your network consists of multiple devices connected at a distance, how can you test connections and keep on top of network performance? It’s easy but not simple task for Cisco…

What is Audio Video Bridging?

Posted on November 17, 2016 by RouterSwitch Tech | 0 Comments

Do you notice that there is a new feature in Cisco 3850 and Cisco 3650? The new feature is that the IEEE802.1 Audio Video Bridging standard is supported on select Catalyst 3850 & 3650 platforms. What is the IEEE802.1 Audio…

FlexStack vs. FlexStack-Plus

Posted on November 7, 2016 by RouterSwitch Tech | 0 Comments

What Are FlexStack and FlexStack-Plus? FlexStack is the name of the stacking technology used by the Cisco Catalyst 2960-S Series of fixed Ethernet switches. FlexStack is specific to Cisco Catalyst 2960-S switches, and only Cisco Catalyst 2960-S Series Switches use…

Something about the Cisco Wireless APs Supporting Cisco WLC

Posted on November 1, 2016 by RouterSwitch Tech | 0 Comments

In this article we collected some problems about the Cisco AP supporting Cisco WLC from Cisco users. AP working/connecting with WLC is a common issue that discussed by network users. Do you have the similar experience while doing connection between…

How to Activate/Upgrade C3850 IP Base License to IP Services?

Posted on October 31, 2016 by RouterSwitch Tech | 0 Comments

“How to upgrade Cisco 3850 LAN base to IP base? or upgraded from IP base image to IP service image?” This is a popular problem that it is often discussed by Cisco 3850 users. Firstly, let’s see what details the…

How to Establish Communications between VLANs?

Posted on November 20, 2015 by RouterSwitch Tech | 0 Comments

In this article we will discuss how to establish communications between VLANs, as well as how to configure the networks. Notes: More about the virtual LANs, Physical LANs and briefly reviewed VLAN configuration options you can read the articles shared…

How to Change the External Interface IP Address on ASA?

Posted on July 20, 2015 by RouterSwitch Tech | 0 Comments

What shall we need to do while Changing the External Interface IP Address on ASA? What common issues shall we pay attention to after changing the IP address on the external interface of the ASA? In the following document from…

Cisco ACL In and Out Questions

Posted on February 13, 2014 by RouterSwitch Tech | 0 Comments

Q1: When to apply ACL in or out? I am having a hard time understanding when to apply an ACL on in or out of the interface. When do I want to apply the ACL on the IN, and when do I want to…

Show ip route

Posted on December 18, 2013 by RouterSwitch Tech | 0 Comments

To display the current state of the routing table, use the show ip route command in user EXEC or privileged EXEC mode. The show ip route command is a powerful tool to use at this point in your search. You…

Steps to Configure Static NAT with Route-maps

Posted on August 12, 2013 by RouterSwitch Tech | 0 Comments

A static NAT (Network Address Translation) configuration creates a simple translation entry in the NAT table, translating a particular local address to a specific global address and vice versa. These entries always remain in the table and are removed only if…

OSPFv3 vs. OSPFv2 Routing Protocol

Posted on August 8, 2013 by RouterSwitch Tech | 0 Comments

What is OSPF? Watch the video to learn OSPF: This article outlines few comparisons of OSPFv3 and OSPFv2 Routing Protocol. OSPFv3 has few similarities with that of IPv4 version i.e. OSPFv2 in some ways, like Packet Type, Interface Type, Neighbor…

How to Troubleshoot OSPFv3 Frame-Relay?

Posted on August 7, 2013 by RouterSwitch Tech | 0 Comments

Open Shortest Path First (OSPFv3) is a link state protocol that supports IPv6 and as well as IPv4. OSPF version 3 differs from OSPF version 2 for IPv4 as some changes have been incorporated to facilitate IPv6. This article demonstrates how…

Basic HSRP Configuration Example On Cisco IOS XR

Posted on August 2, 2013 by RouterSwitch Tech | 0 Comments

The Hot Standby Router Protocol (HSRP) is an IP routing redundancy protocol designed to allow for transparent failover at the first-hop IP router. HSRP provides high network availability, because it routes IP traffic from hosts on networks without relying on…

Conditional Route Origination in OSPF Domain

Posted on July 31, 2013 by RouterSwitch Tech | 0 Comments

Cisco device uses “default-information originate” statement to generate a default route in OSPF domain. There are two ways to originate default route by using this command: 1) When you configure “default-information originate” under OSPF process without any argument after this statement, OSPF process…

DHCP Relay on the Nexus7000/NXOS Vs. IP Helper on the 6500/IoS

Posted on May 20, 2013 by RouterSwitch Tech | 0 Comments

IP helper (now DHCP relay) works differently on the Nexus 7000 than on the Cisco 6500. The N7K imposes a VACL to filter local DHCP broadcast traffic, under the assumption that you’d be using DHCP relay when there is no local DHCP…

How to Configure site-to-site IPSEC VPN on Cisco ASA using IKEv2?

Posted on May 17, 2013 by RouterSwitch Tech | 0 Comments

The scenario of configuring site-to-site VPN between two Cisco Adaptive Security Appliances is often used by companies that have more than one geographical location sharing the same resources, documents, servers, etc. The Cisco ASA is often used as VPN terminator,…

EIGRP on a Cisco ASA Firewall Configuration

Posted on May 14, 2013 by RouterSwitch Tech | 0 Comments

The Cisco Adaptive Security Appliance is an integrated security equipment that can perform a variety of functions like firewall, intrusion prevention, VPN, content security, unified communications, and remote access. Among these functions, the ASA can also perform routing using popular…

How to Configure SNMP on Cisco IOS-based Router/Switch?

Posted on April 22, 2013 by RouterSwitch Tech | 0 Comments

SNMP is an application-layer protocol that provides a message format for communication between SNMP managers and agents. The SNMP manager is the system used to control and monitors the activities of network hosts using SNMP; this is also called Network Management Station (NMS). This article explains how…

DHCP Option 150 & DHCP Option 66

Posted on March 6, 2013 by RouterSwitch Tech | 0 Comments

What is the DHCP? Watch the introduction: Here we will provide an understanding for configuring option 150 and to use option 66 for EX Switches. DHCP Option 150 is Cisco proprietary. Option 66 is an IEEE standard. PROBLEM OR GOAL:…

Is Cisco Bothering With “Open” EIGRP?

Posted on February 26, 2013 by RouterSwitch Tech | 0 Comments

EIGRP is an example of an Interior Gateway Protocol (IGP), which is a network routing protocol that routers use to exchange routing information within an autonomous system (AS). EIGRP takes its place alongside other frequently-encountered IGPs such as Routing Information…