PowerConnect N3048P too many logging messages

Question

We have a few DELL N3048P switch stacks that are producing a lot of logging messages: NOT01-01-47-03#show ver Machine Description............... Dell Networking SwitchSystem Model ID................... N3048PMachine Type...................... Dell Networking N3048PSerial Number..................... CN0RGC0T2829876R0429A01Manufacturer...................... 0xbc00Burned In MAC Address............. 28F1.0EFB.25D8System Object ID.................. 1.3.6.1.4.1.674.10895.3060SOC Version....................... BCM56340_A0HW Version........................ 5CPLD Version...................... 13Image File........................ N3000_N2000v6.3.3.8Software Capability............... ACCESS ROUTER unit active backup current-active next-active---- ----------- ----------- -------------- --------------1 6.3.3.8 6.3.1.8 6.3.3.8 6.3.3.82 6.3.3.8 6.3.1.8 6.3.3.8 6.3.3.83 6.3.3.8 6.3.1.8 6.3.3.8 6.3.3.84 6.3.3.8 6.3.1.8 6.3.3.8 6.3.3.85 6.3.3.8 6.3.1.8 6.3.3.8 6.3.3.8 NOT01-01-47-03#show running-config | section logging logging 10.80.126.159exitlogging 10.80.129.159level warningsexitlogging source-interface loopback 0sntp source-interface loopback 0tacacs-server source-interface loopback 0exit Most of the interfaces have the same configuration on them: NOT01-01-47-03#show running-config interface Gi2/0/25 ip dhcp snooping log-invalidip arp inspection limit rate 200 burst interval 1description 'USER-PORT'spanning-tree portfastswitchport mode trunkswitchport trunk native vlan 2switchport trunk allowed vlan 2-3switchport port-securityswitchport port-security dynamic 3switchport port-security maximum 3switchport port-security violation shutdown These are the logging messages I receive. <188> Dec 12 15:27:31 NOT01-01-47-03-5 DHCP_SNP[dtlTask]: ds_main.c(3004) 19939584 %% DHCP snooping dropping client message received on interface Gi1/0/23, vlan 300.<188> Dec 12 15:27:29 NOT01-01-47-03-5 DHCP_SNP[dtlTask]: ds_util.c(1780) 19939583 %% DHCP packet: op Request, htype 1, hlen 6, hops 0, xid 29759346, secs 65535, ciaddr 10.79.50.33, yiaddr 0.0.0.0, server 0.0.0.0, giaddr 0.0.0.0, chaddr D4:78:56:02:74:DF.<188> Dec 12 15:27:29 NOT01-01-47-03-5 DHCP_SNP[dtlTask]: ds_util.c(1738) 19939582 %% IP packet: ver/hlen 0x45, tos 0, len 328, id 0, flags/offset 0x40, ttl 63, proto 17, src 10.79.50.33, dst 10.86.128.12.<188> Dec 12 15:27:29 NOT01-01-47-03-5 DHCP_SNP[dtlTask]: ds_util.c(1705) 19939581 %% Ethernet header: dest 00:00:5E:00:01:0A, src 28:F1:0E:FB:12:9B, type/len 0x8100.<188> Dec 12 15:27:29 NOT01-01-47-03-5 DHCP_SNP[dtlTask]: ds_main.c(3009) 19939580 %% Source MAC address 28:F1:0E:FB:12:9B does not match client hardware address D4:78:56:02:74:DF. This message appears when DHCP Snooping drops the source mac address doest not match the clinet Hardware address.<188> Dec 12 15:27:29 NOT01-01-47-03-5 DHCP_SNP[dtlTask]: ds_main.c(3004) 19939579 %% DHCP snooping dropping client message received on interface Gi2/0/25, vlan 300.<188> Dec 12 15:27:29 NOT01-01-47-03-5 DHCP_SNP[dtlTask]: ds_util.c(1780) 19939578 %% DHCP packet: op Request, htype 1, hlen 6, hops 0, xid 2435572992, secs 65535, ciaddr 10.79.50.45, yiaddr 0.0.0.0, server 0.0.0.0, giaddr 0.0.0.0, chaddr D4:78:56:02:7D:AC Also VLAN 300 is only configured on two ports per switch, I can not understand why we are receiving soo many messages.

phipe · Answer

I have removed the command ip dhcp snooping log-invalid from the port configuration. This dramatically reduced the logs.   Thank you

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