2.1.e (i) LACP, PAgP, manual Configuration: When configuring a channel group we have the options of LACP, PAGP, or just ON (static). Here's an example of ports g0/1-2 in a port channel: en conf t int range g0/1-2 channel-group 1 mode <active | auto | desirable | on | passive> These obviously do different things: …
2.1.e Implement and Troubleshoot EtherChannel
2.1.e Implement and Troubleshoot EtherChannel Etherchannel, port-channel, team, LAG, and in vendor neutral groups (trunk) all refer to the static or negotiated bundling of links. Etherchannels provide at the heart provide us link redundancy. If a link fails it's automatically removed from the etherchannel. When we configure an etherchannel we group links into a …
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Cisco ASA REST-API Setup Process
Download ASA 5500-X Software from Cisco or use https://software.cisco.com/download/release.html?mdfid=286285782&flowid=77254&softwareid=286284108&release=1.3.2&relind=AVAILABLE&rellifecycle=&reltype=latest Note: if you DO NOT have a valid Cisco account you can download it here https://upw.io/M4/asa-restapi-132200-lfbff-k8.SPA Now that we have the software load up ASDM and drop the file inside the ASA Flash. Now that we have the software we need to activate it on …
2.1.d Flash Cards
Here are my flash cards for 2.1.d Implement and troubleshoot Trunking. 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 the …
2.1.d (iv) Manual Pruning
VTP is great, in concept, however in the real world I just don't see it deployed to often. The more likely situation is you will be tagging trunks manually, and pruning them manually. The more “real-word” solution to pruning trunks is to just do manual pruning via “switchport trunk allowed vlan x” The command above …
2.1.d (iii) Native VLAN
The native vlan is the untagged vlan on the trunk. When the port is a trunk the native vlan by default is 1, however we can change that with “switchport trunk native vlan X”. The traffic for the native vlan goes out with NO 802.1q header, while tagged traffic on the trunk goes out with …