Tag Archives: L2 / L3

Checklist for a Successful L2 L3 Protocol Testing

What is l2 l3 protocol testing ?

l2/l3 protocol testing training in Chennai provides Protocol testing is a generic terms using by company work in the communication industries for testing different protocol in platform of Switch, Wireless, Switching, Routing, VoIP, etc.

Companies such as ALCATEL CISCO, JUNIPER produce network devices like router, modem, wireless access point, etc. that using different protocol for communicate, for example, CISCO use OSPF, EIGRP, etc.

Protocol testing tools is nothing but check whether OSPF (Open Shortest Path First), EIGRP (Enhanced Interior Gateway Routing Protocol) any other protocol is work as per respectively standard.

Different type of networking Protocol (L2 and L3):

The OSI models has total 7 layer of networking communication, in which layers 2 and layer 3 are very crucially.

Layer 2: It’s a data link layer. Token Ring,Frame Relay,Mac address and Ethernet, are all example of Data link layer.

Layer 3: It’s a networking layer that determine the best available paths in the networking for communicate. IP address is an examples of layer 3.

Protocol Testing Process

For protocol testing, you need protocol analyze & simulator. Protocol analyze ensure proper decode along with call & session analysis. While simulator simulate various entity of network elements. Usually an protocol testing is carried out DUT (device under test) to others device like l2 switching and l2 routing and configure protocol in it. Thereafter check the packet structure of the packet send by the device. It’s check scalable, performance, protocol algorithms etc. of devices by use tools like Wireshark,fx Network and Scapy

Testing Type for Protocol Testing

Protocol testing include testing of functional, performance, protocol stacks, interoperable, etc. During protocol testing basic three check is done.

Bandwidth: How many packet we can be send per seconds
Correctness: Do we are receive packets X when we expect
Latency: How long does the packet taking to transited the system

Protocol test can be segregate into two category. Stress and Reliable Tests & Functional Test. Stress and Reliable test are cover load test, stress test, performances testing, etc. While conformance testing,functional test include negative testing, interoperability testing, etc.

Conformance Testing: The protocol implement on product are test for adherence such RFC,IEEE etc.

Interoperability Testing: The interoperability for different vendor are tes. This testing is done after the conformance test is done on appropriates domain. Network feature Testing: The feature on networking product are test for functional with references to designed document. For example feature can be port-security on the switching, ACL on the routing etc.

What is Protocol in a software industry?

When computer communicate with each other, there is a common set of rules & condition that each computer has following. In other word, protocol determined how data are transmit between compute device and over network.Protocol are classified into 2 category routed protocol and a routing protocol

Routed Protocol: Routed protocol can be use to sending the user data from one networks to another. It’s carry user traffic like email, web-traffics, file transfer, etc. Routed protocol are AppleTalk,IPX and IP .

Routing Protocol: Routing protocol are network protocol that determine router for routers. It’s only used between router. For example EIGRP, RIP, IGRP, etc.

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