Cisco 11503 Administration Guide - Page 169

Chapter 4 Using the CSS Logging Features Frequently Queried Log Messages Table 4-8 Cisco 11500 Series CSS Log Messages (continued) Log Message (sys.log: Subsystem Name, Level, and Message) IPV4-4: Ipv4SfmProcessArpFrame: bad ARP packet received Cause and Resolution The CSS detects that it has received an invalid ARP packet. The following messages can appear in the log to clarify why the CSS logs the receipt of an invalid ARP packet. IPV4-4: ffff53ff01ff ff0077fa6503 0806 IPV4-4: HW type: 0x0000 Proto type: 0x0000 IPV4-4: HLEN 0x00 PLEN 0x00 OPTPA-TSI-CSS1# 0x0000 IPV4-4: Sender HA 000000000000 IPV4-4: Sender IP 0.0.0.0 IPV4-4: Target HA 000000000000 IPV4-4: Target IP 0.0.0.0 The first line in the log message identifies the destination MAC address of the packet, the source address of the packet, and the type of IP packet. In the example above, the destination MAC address is ff-ff-53-ff-01-ff and the source MAC address is ff-00-77-e7-65-03. In addition, 0806 equals ETHERTYPE_ARP. The second line in the message identifies the hardware type and protocol type. In this example, the CSS logs the messages because both the hardware type and protocol type are 0000. The CSS views this value as an indication of an invalid packet. OL-5647-02 Cisco Content Services Switch Administration Guide 4-49