From the course: Cisco CCNP ENCOR v1.1 (350-401) Cert Prep: 1 Architecture, Virtualization, and Infrastructure
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Troubleshooting EtherChannels
From the course: Cisco CCNP ENCOR v1.1 (350-401) Cert Prep: 1 Architecture, Virtualization, and Infrastructure
Troubleshooting EtherChannels
In our previous video, we took a look at EtherChannels. It was a bit of review from our CCNA studies. Now in this video, we want to take a look at how to troubleshoot an EtherChannel that's not working correctly by taking a look at some common issues. And then we're going to go through a troubleshooting scenario together. One of the most common reasons that an EtherChannel is not behaving as expected is the ports at each end of a link that's part of an EtherChannel, they're configured differently in terms of maybe speed, or they might have a different duplex setting or a different trunk mode, or they might be configured for a different native VLAN, or they allow a different set of VLANs. After all, we typically are going to be setting up a trunk over an EtherChannel, because an EtherChannel gives us a nice big pipe of bandwidth. That's a great place to configure a trunk because a trunk is carrying traffic for multiple VLANs, it potentially needs a lot of bandwidth. Another issue we…
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Contents
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Infrastructure technologies1m 44s
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Review of IEEE 802.1q trunking3m 29s
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Troubleshooting 802.1q trunks12m 20s
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VLAN Trunking Protocol (VTP) theory11m 8s
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VTP configuration6m 57s
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Review of EtherChannel operation8m 47s
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Troubleshooting EtherChannels8m 1s
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Multiple Spanning Tree (MST) theory2m 45s
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MST configuration7m 6s
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Review of Rapid Spanning Tree Protocol (RSTP)8m 9s
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RSTP configuration6m 3s
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BPDU guard3m 37s
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Root guard2m 25s
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OSPF compared to EIGRP22m 18s
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Review of OSPF neighbor formation6m 40s
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Review of OSPF network types2m 30s
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OSPF LSA and area types15m 18s
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Multi-Area OSPFv2 configuration11m 45s
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OSPF route filtering11m 12s
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OSPF route summarization8m 37s
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OSPFv3 traditional configuration12m 28s
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OSPFv3 address families configuration9m 2s
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Fundamental BGP concepts9m 56s
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BGP path selection criteria7m 55s
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Routing IPv4 with BGP: Part 119m 39s
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Routing IPv4 with BGP: Part 29m 29s
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Routing IPv6 with BGP over an IPv49m 42s
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Routing IPv6 with BGP over an IPv67m 45s
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Wireless communication theory11m 40s
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Access point modes7m 41s
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Antenna types5m 27s
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Access point operation8m 35s
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Layer 2 vs. Layer 3 roaming7m 10s
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WLAN troubleshooting9m 5s
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Review of Network Address Translation (NAT)9m 19s
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Static NAT configuration4m 15s
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Dynamic NAT configuration5m 45s
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Port Address Translation (PAT) configuration5m 5s
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Review of Network Time Protocol (NTP)10m 17s
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NTP security5m 51s
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Understanding Precision Time Protocol (PTP)15m 47s
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HSRP configuration29m 21s
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VRRP configuration7m 48s
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Multicast operation29m 59s
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