2 Replies Latest reply: Oct 8, 2011 9:36 PM by Naren RSS

    L3 Ether channel in NM-16ESW (Dynamips GNS3)


      Hello All,


      I'm practicing the INE CCIE routing and Switching Vol 1 using Dynamips.


      I use 3725 with NM-16ESW to  simulate the switch.


      I understand the limitation in this.


      But, could some one please clarify if I can create a L3 etherchannel using NM-16ESW module?


      Because the command "channel-group 1 mode on" gets unrecognised if i put it under a rotued port (by using "no switchport")  on NM-16ESW.


      In the same time, on the same port, the command goes in well if I configure it as L2 switchport.


      Please clarify if it is the limitation of NM-16ESW or dynamips. Can't it support L3 ether channel?


      Many thanks in Advance !

        • 1. Re: L3 Ether channel in NM-16ESW (Dynamips GNS3)

          You can't create a L3 Etherchannel with the NM-16ESW.

          Here is a list of what is missing with the 16 port switching module (NM-16ESW) for the 3725 in comparison to the 3550/3460 Catalyst switches in the CCIE lab.


          Access Switch Device Manager (SDM) Template

          ACL - Improved Merging Algorithm

          ARP Optimization

          BGP Increased Support of Numbered as-path Access Lists to 500

          BGP Restart Neighbor Session After max-prefix Limit Reached

          BGP Route-Map Continue Support for Outbound Policy

          Clear Counters Per Port

          DHCP Snooping

          DHCP Snooping Counters

          Diagnotics Options on bootup

          ErrDisable Reactivation Per Port

          ErrDisable timeout


          EtherChannel - Flexible PAgP

          Etherchannel Guard

          Fallback Bridging

          Flex Link Bi-directional Fast Convergence

          Flex Link VLAN Load-Balancing

          Flex Links Interface Preemption

          GOLD - Generic Online Diagnostics

          IEEE 802.1ab, Link Layer Discovery Protocol

          IEEE 802.1s - Multiple Spanning Tree (MST) Standard Compliance

          IEEE 802.1s VLAN Multiple Spanning Trees

          IEEE 802.1t

          IEEE 802.1W Spanning Tree Rapid Reconfiguration

          IEEE 802.1x - Auth Fail Open

          IEEE 802.1x - Auth Fail VLAN

          IEEE 802.1x - VLAN Assignment

          IEEE 802.1x - Wake on LAN Support

          IEEE 802.1x Authenticator

          IEEE 802.1X Multi-Domain Authentication

          IEEE 802.1x RADIUS Accounting

          IEEE 802.1x with Port Security

          IEEE 802.3ad Link Aggregation (LACP)

          IEEE 802.3af Power over Ethernet

          IGMP Fast Leave

          IGMP Version 1


          IP Phone Detection Enhancements

          IP Phone Enhancement - PHY Loop Detection

          IPSG (IP Source Guard)

          Jumbo Frames

          L2PT - Layer 2 Protocol Tunneling

          MAC Authentication Bypass

          MLD Snooping

          Multicast Etherchannel Load Balancing

          NAC - L2 IEEE 802.1x

          NAC - L2 IP

          NAC - L2 IP with Auth Fail Open

          Packet-Based Storm Control

          Per Port Per VLAN Policing

          Port Security

          Port Security on Private VLAN Ports

          Private VLANs

          QoS Policy Propagation via Border Gateway Protocol (QPPB)

          Rapid-Per-VLAN-Spanning Tree (Rapid-PVST)

          Reduced MAC Address Usage

          Remote SPAN (RSPAN)

          Smart Port

          Spanning Tree Protocol (STP) - Loop Guard

          Spanning Tree Protocol (STP) - Portfast

          Spanning Tree Protocol (STP) - PortFast BPDU Filtering

          Spanning Tree Protocol (STP) - Portfast Support for Trunks

          Spanning Tree Protocol (STP) - Root Guard

          Spanning Tree Protocol (STP) - Uplink Load Balancing

          SRR (Shaped Round Robin)

          Standby Supervisor Port Usage

          STP Syslog Messages

          Switching Database Manager (SDM)

          Trunk Failover

          Trusted boundary (extended trust for CDP devices)

          Unicast Mac Filtering

          UniDirectional Link Detection (UDLD)

          VLAN Access Control List (VACL)

          VLAN Aware Port Security

          Weighted Tail Drop (WTD)

          • 2. Re: L3 Ether channel in NM-16ESW (Dynamips GNS3)

            Thank you so much Siva..