12.07.2015 Views

Brocade MLX Series and Brocade NetIron XMR Diagnostic Guide ...

Brocade MLX Series and Brocade NetIron XMR Diagnostic Guide ...

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GRE <strong>and</strong> IPv6 tunnels 10Common diagnostic scenarios• VPLS does not accept a receiver report where VPLS VLAN 1002 is configured with multicastactive.This issue is resolved by upgrading the software version to reflect the latest patches <strong>and</strong>versions.• VPLS drops multicast traffic with multicast addresses that have not been reported to the<strong>Brocade</strong> <strong>MLX</strong> series routers (through IGMP Report).This issue is resolved by upgrading the software version to reflect the latest patches <strong>and</strong>versions.GRE <strong>and</strong> IPv6 tunnelsThe following comm<strong>and</strong>s provide information about Generic Routing Encapsulation (GRE) <strong>and</strong> IPv6tunnels. Because both tunnel types are used by various applications (Multicast, PBR, <strong>and</strong> so on),the following comm<strong>and</strong>s display specific debugging messages with detailed information. Thesecomm<strong>and</strong>s help to isolate events for a specific tunnel, a range of tunnels, or all tunnels.debug iptunnelSyntax: [no] debug iptunnel [errors | events | ipc | keepalives | packets | statistics | tunnel-type[gre | ipv6]] [range - ]• errors - Displays IP tunnel errors.• events - Displays IP tunnel events.• ipc - Displays IP tunnel IPC messages.• keepalives - Displays keepalive information (for GRE tunnels only).• packets - Displays IP tunnel packets information.• statistics - Displays tunnel statistics.• tunnel-type - Displays information for a specific tunnel type.• gre - Displays information for a specific GRE tunnel.• ipv6 - Displays information for a specific IPv6 tunnel.• range - - Displays information for a range of tunnels (specifylower <strong>and</strong> higher tunnel ID values).debug iptunnel errorsSyntax: [no] debug iptunnel errors [range - ]This comm<strong>and</strong> displays any error messages for the specified range of tunnels, includingunexpected events as part of the packet flow, IPC flow, or configuration of IP tunnels.Comm<strong>and</strong> output resembles the following example.<strong>Brocade</strong># debug iptunnel errorsApr 28 11:54:24 TNNL_GRE:ERRORS: tnnl 2- IP tunnel is invalidApr 28 11:54:24 TNNL_GRE:ERRORS: tnnl 2- L3 encapsulate <strong>and</strong> send - Dropping asTnnl is Down<strong>Brocade</strong> <strong>MLX</strong> <strong>Series</strong> <strong>and</strong> <strong>Brocade</strong> <strong>NetIron</strong> <strong>XMR</strong> <strong>Diagnostic</strong> <strong>Guide</strong> 34753-1002426-02

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