1.1.f (iii) RTP/RTCP Concepts RTP and RTCP are IP protocols mainly used for delivery for voice and video. RTP carries the data, while RTCP keeps track of the connections. RTP is very similar to UDP except that it has sequencing in the header. 1.1.f (iii) RTP/RTCP Concepts
Category Archives: CCIE R&S
1.1.f Explain UDP Operations
Everything you need to know regarding section 1.1.f Explain UDP Operations is here. To better understand UDP we need to understand the header and its operations. src port = socket open in the source of this UDP packet for this connection dst port = socket open in the destination of this UDP packet …
2.1.a Implement and Troubleshoot Switch Administration Flash Cards
Here are my flash cards for 2.1.a Implement and troubleshoot Switch administration. I am giving these flash cards in TXT and in an ANKI package. If you don’t have or know what Anki is, it is my favorite , free flash card program: https://apps.ankiweb.net/ Here is the Anki package you may import and start using …
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2.1.a (iii) L2 MTU
This section discusses L2 MTU as it relates to Cisco and 2.1.a (iii) L2 MTU. Recall in the parent section that we showed the total size of an Ethernet frame (and in 1.1.d we even discused it more). Well the L2 MTU is is general this: IP packet (1500) Ethernet src+dst+ethertype+fcs+(optional .1q) = 18-22 bytes …
2.1.a (ii) Errdisable Recovery
This section will be used to build notes and flash cards for 2.1.a (ii) Errdisable Recovery. Err-disabled is a port state which prohibits sending and reciving traffic, it effectively means the port is down for some error related reason. How do you know it’s err-disabled? 1.To view a ports status you can use: Look for …
2.1.a (i) Managing MAC Address Table
Here are some facts, commands, and information related to 2.1.a (i) Managing MAC Address Table, I will use to build the flash cards for this section. I’m not going to waste your time with explaining the basics of MAC address table population. You will mainly be utilizing the mac address-table show commands to trouble shoot …