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Harden an HSRP virtual default gateway with MD5 authentication so only trusted routers can participate. You’ll secure an existing HSRP group on two IOS routers that share a user VLAN via a single L2 switch. Validate the authentication state on both routers and confirm the endpoint still reaches the virtual IP.
+2 more objectives · 3 troubleshooting scenarios
Configure HSRP on two routers with a shared virtual gateway and speed up failover by tightening hello/hold timers to 1/3 seconds. Validate deterministic active/standby selection and confirm timer settings via show commands.
+3 more objectives · 4 troubleshooting scenarios
Troubleshoot and repair a pre-broken HSRP gateway on a single shared LAN. Two routers (R1, R2) and two clients (PC1, PC2) connect to a single L2 switch (SW1) in VLAN 10. The hosts intermittently lose gateway reachability because both routers act active due to seeded faults. Use show commands to diagnose, then correct HSRP so both routers share one virtual IP and R1 deterministically wins active.
+2 more objectives · 4 troubleshooting scenarios
Implement two HSRP groups on a single VLAN so each router is Active for one group and Standby for the other. Two hosts split default gateways across the two virtual IPs for deterministic load-sharing with redundancy.
+3 more objectives · 3 troubleshooting scenarios
Replace HSRP with open-standard VRRP to provide a shared virtual gateway on a single access VLAN. Configure VRRP group 1 with a common virtual IP and deterministic master/backup roles via priority and preempt. Validate using show vrrp commands and end-host pings.
+2 more objectives · 4 troubleshooting scenarios
Build a fault-tolerant default gateway on a single LAN using HSRP. Two routers share one virtual IP so a host keeps the same default route even if one router fails. You will configure basic HSRP group 1 with a shared VIP, verify active/standby roles, and confirm the host can ping the virtual gateway.
+3 more objectives · 5 troubleshooting scenarios
Build a two-link LACP EtherChannel between SW1 and SW2 and convert the Port-channel into an 802.1Q trunk that explicitly carries VLANs 40 and 41. Validate end-to-end host reachability across VLAN 40 and confirm the trunk’s allowed VLAN list and switchport mode on the logical port-channel. Emphasis: deterministic EtherChannel configuration on member interfaces, correct trunking on the Port-channel, and verification with IOS show commands.
+3 more objectives · 3 troubleshooting scenarios
Build a Layer-2 PAgP EtherChannel between two ioll2-xe switches (SW1 and SW2) using a desirable/auto pairing on two parallel links. Bundle Ethernet0/0 and Ethernet0/1 into Port-channel 3, make the port-channel a VLAN 30 access interface on both switches, and verify with show etherchannel summary, show pagp neighbor, show pagp counters, and end-to-end host pings in VLAN 30.
+2 more objectives · 5 troubleshooting scenarios
Advanced CCNP EtherChannel troubleshooting capstone on Cisco IOS L2 switches. Two ioll2-xe switches are joined by two parallel links intended to bundle as one LACP Port-channel. The lab ships pre-broken with two independent faults on SW1: the parallel links are placed into different channel-groups and their switchport L2 parameters are inconsistent. Learners must use show commands to diagnose, then correct both faults so Port-channel 100 bundles both members as an access link for VLAN 100, restoring host-to-host reachability.
+3 more objectives · 5 troubleshooting scenarios
Build a two-link LACP EtherChannel between two layer-2 switches as an access port for VLAN 60, then tune the global load-balancing algorithm to src-dst-ip so traffic distributes more evenly. Verify Po6 status, the hashing method, and end-to-end host reachability.
+3 more objectives · 4 troubleshooting scenarios
Advanced CCNP troubleshooting lab: a pair of Layer-2 switches are connected by a two-link EtherChannel intended to carry VLAN 90 between access hosts. The starter configuration ships broken on purpose: the inter-switch bundle won’t form due to incompatible aggregation modes, and a trunk allow-list drift on one side prunes VLAN 90. Diagnose with IOS show commands, correct the EtherChannel mode so LACP forms the Port-channel, and restore trunk policy so same-VLAN hosts can communicate.
+2 more objectives · 4 troubleshooting scenarios
Build a Layer-3 EtherChannel between two IOS XE routers using LACP active/active. Two parallel router links are bundled into Port-channel5, which carries a /30 transit. R2 hosts a loopback; R1 installs a static route to reach it. Validate that the Port-channel holds the IP (members do not), that the bundle is up and uses both links, and that pings across the /30 and to the loopback succeed. Emphasis: deterministic EtherChannel configuration and Layer-3 port-channel practices.
+2 more objectives · 5 troubleshooting scenarios