debug ip gre
Please
confirm command desciption and let me know if anything needs to be added
here
Activates Generic Routing Encapsulation (GRE) debugging options. Parameters
Please confirm below descriptions
Modes
Privileged EXEC mode
Usage Guidelines
Please confirm
The no form of
the command disables GRE debugging options.
Note: ICX 7150 devices do not
support tunnels.
Examples
The following example activates the GRE keepalive debugging
Please confirm below examples
device# debug ip gre keepalive GRE_MP: Keepalive Bring DOWN GRE Tunnel 11 GRE_MP: Keepalive Bring UP GRE on Tunnel 11 - port is 2/1/2 GRE_MP: RX Keepalive packet on tnnl 11 src 10.22.33.254, dst 10.22.33.252 GRE_MP: TX Keepalive packet on tnnl 11 we need to find outgoing port GRE_MP: TX Keepalive packet on tnnl 11 - outgoing_port is 2/1/2 with mac 0000.00bb.ef40 vlan 2 GRE_MP_KEEPALIVE: NO FREE BUFFER AVAILABLE GRE_MP: For Tunnel 11, Keepalive timeout after 3 seconds GRE_MP: For Tunnel 11, stop keep-alive GRE_MP: For Tunnel 11, start keep-alive GRE_MP: enqueue Keepalive packet on tunnel 11 at index 23 GRE_MP: dequeue Keepalive packet on tunnel 11 at index 23
The following example the debugging of GRE packet processing.
device# debug ip gre packet GRE: Error - IP GRE packet with invalid Ptype 0x1A4 GRE: Error - IP GRE packet with invalid first word 0x2C GRE: Error - IP GRE packet with invalid first word 0x2C GRE fragment : Rx IP GRE Pkt: src 10.22.33.254, dst 224.0.0.5, len 64 id 324 GRE Packet too big - need extra processing: Rx IP GRE Pkt: src 10.22.33.254, dst 224.0.0.5, len 64 GRE Reassembly: Rx IP GRE Pkt: src 10.22.33.254, dst 224.0.0.5, len 64 GRE : Rx IP GRE Pkt: src 10.22.33.254, dst 224.0.0.5, len 64 GRE: Error - Rx IP Pkt with invalid Inner IPv4 header GRE: Error - Rx IP Pkt with 2 GRE headers: Inner src 10.22.33.254, Inner dst 224.0.0.5, len 64 GRE: Dropping the packet as GRE tnnl 11 is not UP GRE_LP: Error - LP TX GRE packet is in LOOP GRE : FORWARD IP to GRE tunnel 11 - Pkt: src 10.22.33.254, dst 224.0.0.5, len 64 GRE : Failed to FORWARD IP to GRE tunnel 11 - Pkt: src 10.22.33.254, dst 224.0.0.5, No route
The following example activates the tunnel effects debugging.
device# debug ip gre log Apply mtu 1400 failed for tunnel 11 as all mtu profiles are used Clearing PMTU for tunnel 11 due to ip mtu 1400 configuration Tunnel Create Sync-Receive event for tunnel: 11 Tunnel Create Sync-Successful for tunnel: 11 Tunnel Update TS Sync-Receive event for tunnel: 11 Tunnel Update TS Sync-Successful for tunnel: 11 Tunnel Update Nhop Sync-Receive event for tunnel: 11 Tunnel Update Nhop Sync-Successful for tunnel: 11 Tunnel Update TTI Sync-Receive event for tunnel: 11 Tunnel Port Up Sync-Receive event for tunnel: 11 Tunnel Port Up Sync-Successful for tunnel: 11 Tunnel Port Down Sync-Receive event for tunnel: 11 Tunnel Port Down Sync-Successful for tunnel: 11 Tunnel Update MTU Sync-Receive event for tunnel: 11 Tunnel Update MTU Sync-Successful for tunnel: 11 Tunnel Delete Sync-Receive event for tunnel: 11 Tunnel Delete Sync-Successful for tunnel: 11 Tunnel Delete Nhop Sync-Receive event for tunnel: 11 Tunnel Delete Nhop Sync-Successful for tunnel: 11 Tunnel Delete TTI Sync-Receive event for tunnel: 11 Tunnel Delete Origination entry Sync-Receive event for tunnel: 11 Tunnel Delete Origination entry Sync-Successful for tunnel: 11 process_one_l3_unicast_update: entryType 6 Fill Sync Tunnel Entry-Bad parameters. Failed for tunnel: 11 Fill Sync Tunnel Entry-Bad TS entry. Failed for tunnel: 11 pack_tunnel_entry_change called with tunnel_index: 11 operation: TUNNEL_SYNC_UPDATE_NHOP pack_tunnel_entry_list called with tunnel_index: 11 operation: TUNNEL_SYNC_CREATE_ALL, from_beginning: 1 Sync-ing tunnel entry 11 [pp_puma_tunnel_hotswap_insert] No tunnel start info for tunnel 11 DEBUG 0x8: Tunnel 11 already deleted DEBUG 0x8: Tunnel 11 pp_delete_tunnel_entry DEBUG 0x8: Can not find route for tunnel id 11, hw index 23, src 10.22.33.254, dest 10.22.33.252 DEBUG 0x8: create GRE tunnel origination because find route for tunnel id 11, hw index 23, src 10.22.33.254, dest 10.22.33.252 DEBUG 0x8: Route for tunnel id 11 is via another tunnel or management port 22 DEBUG 0x8: Direct route for tunnel id 11 dest 10.22.33.252 has unresolved ARP DEBUG 0x8: indirect route for tunnel id 11 dest 10.22.33.252 next hop 10.11.25.5 has unresolved ARP DEBUG 0x8: indirect route for tunnel id 11 destination 10.22.33.252 next hop 10.11.25.5 has resolved ARP - CMD => route DEBUG 0x8: Set next hop to Drop for tunnel id 11, hw index 23, src 10.22.33.254, dest 10.22.33.252 DEBUG 0x8: Tunnel 11 - next hop 10.11.25.5 has no link-layer DEBUG 0x8: bring tunnel id 11 up with drop DEBUG 0x8: Create tunnel id 11 with next hop 185276677 - old next hop is 125276633 DEBUG 0x8: bring tunnel id 11 up Update_hw_routes for Tunnel 11 Path MTU: Tunnel 11 - reset path mtu timer 456 (3344) Path MTU: Tunnel 11 - failed to reset path mtu timer 456 (3344)