Cisco N5K-C5010P-BF Troubleshooting Guide - Page 28
sh platform software dcbx internal info interface, show system
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Data Center Bridging Chapter 2 Troubleshooting FCoE Issues Send document comments to [email protected]. • In the output from the show system internal dcbx info interface ethernet 1/4 command, check the peers DCBX TLVs. Make sure that PFC and FCoE TLV were negotiated as willing and enabled, and that there are no errors. Example: switch# show system internal dcbx info interface ethernet 1/4 Peer's DCX TLV: DCBX TLV Proto(1) type: 1(Control) DCBX TLV Length: 10 DCBX TLV Value 00 00 02 00 00 00 01 00 00 00 sub_type 0, error 0, willing 0, enable 0, max_version 0, oper_version 0 DCBX TLV Proto(1) type: 2(PriGrp) DCBX TLV Length: 17 DCBX TLV Value 00 00 c0 00 00 01 00 00 32 32 00 00 00 00 00 00 02 sub_type 0, error 0, willing 1, enable 1, max_version 0, oper_version 0 DCBX TLV Proto(1) type: 3(PFC) DCBX TLV Length: 6 DCBX TLV Value 00 00 c0 00 08 01 sub_type 0, error 0, willing 1, enable 1, max_version 0, oper_version 0 DCBX TLV Proto(1) type: 4(App(Fcoe)) DCBX TLV Length: 16 DCBX TLV Value 00 00 c0 00 89 06 00 1b 21 08 89 14 00 1b 21 08 sub_type 0, error 0, willing 1, enable 1, max_version 0, oper_version 0 • Check the peer PFC and FCoE subtypes. Use the show system internal dcbx info interface ethernet 1/4 command. (For releases earlier than 4.2(1)N1, use the sh platform software dcbx internal info interface ethernet x/y command.) Example: switch# show system internal dcbx info interface ethernet 1/4 Feature type PFC (3) feature type 3(PFC)sub_type 0 Feature State Variables: oper_version 0 error 0 local error 0 oper_mode 1 feature_seq_no 0 remote_feature_tlv_present 1 remote_tlv_aged_out 0 remote_tlv_not_present_notification_sent 0 Feature Register Params: max_version 0, enable 1, willing 0 advertise 1 disruptive_error 0 mts_addr_node 0x101 mts_addr_sap 0x179 Desired config cfg length: 2 data bytes:08 08 Operating config cfg length: 2 data bytes:08 08 Peer config cfg length: 0 data bytes: Feature type App(Fcoe) (4)sub_type FCoE (0) feature type 4(App(Fcoe))sub_type 0 Feature State Variables: oper_version 0 error 0 local error 0 oper_mode 1 feature_seq_no 0 remote_feature_tlv_present 1 remote_tlv_aged_out 0 remote_tlv_not_present_notification_sent 0 Feature Register Params: max_version 0, enable 1, willing 0 advertise 1 disruptive_error 0 mts_addr_node 0x101 mts_addr_sap 0x179 • Check the DCBX counters located at the very bottom of the output display from the show system internal dcbx info interface ethernet 1/4 command. Look for any errors. Example: Traffic Counters DCBX pkt stats: Total frames out: 15383 Total Entries aged: 97 Total frames in: 15039 DCBX frames in: 15033 Total frames received in error: 6 Total frames discarded: 6 Total TLVs unrecognized: 0 Cisco Nexus 5000 Series Troubleshooting Guide 2-4 OL-25300-01