--- /dev/null
+# figure out interface mac address
+
+t42:/home/dpavlin# ip link show eth0
+2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP mode DEFAULT group default qlen 1000
+ link/ether 00:0d:60:79:26:67 brd ff:ff:ff:ff:ff:ff
+t42:/home/dpavlin# ip link show eth2
+4: eth2: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UNKNOWN mode DEFAULT group default qlen 1000
+ link/ether 00:e0:4c:39:00:78 brd ff:ff:ff:ff:ff:ff
+
+
+
+# make sure that mac tables in switches are populated (ping something available in that vlan)
+
+t42:/home/dpavlin# arping -S 10.20.30.77 -i eth0 10.4.0.1
+t42:/home/dpavlin# arping -S 10.20.30.78 -i eth2 193.198.212.1
+
+
+
+# pull new bridge tables from switches
+
+dpavlin@black:~/dell-switch$ ./sw-mac-port.sh # pull all switches
+
+or you can just pull few interesting ones which is faster:
+
+dpavlin@black:~/dell-switch$ ./snmp-mac-port sw-e300
+dpavlin@black:~/dell-switch$ ./snmp-mac-port sw-e300-2
+
+
+
+# find switch and port for mac
+
+dpavlin@black:~/dell-switch$ ./find-port-for-mac 00:0d:60:79:26:67 # t42 eth0
+sw-e300 4 00:0d:60:79:26:67 17
+# mac 00:0d:60:79:26:67 on 19 switches
+
+dpavlin@black:~/dell-switch$ ./find-port-for-mac 00:e0:4c:39:00:78 # t42 eth2
+sw-e300 1 00:e0:4c:39:00:78 23
+sw-e300-2 1 00:e0:4c:39:00:78 21
+# mac 00:e0:4c:39:00:78 on 42 switches
+
+
+
+# repeat all that again for eeepy
+
+dpavlin@eeepy:~$ ip link show eth0
+2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP mode DEFAULT group default qlen 1000
+ link/ether 00:1e:8c:0a:49:3c brd ff:ff:ff:ff:ff:ff
+
+dpavlin@eeepy:~$ sudo arping -i eth0 -S 10.20.30.55 193.198.212.1
+
+dpavlin@black:~/dell-switch$ ./find-port-for-mac 00:1e:8c:0a:49:3c # eeepy eth0
+sw-a200-s 1 00:1e:8c:0a:49:3c 17
+# mac 00:1e:8c:0a:49:3c on 43 switches
+
+
+# figure out which vlans are on which switches
+
+dpavlin@black:~/dell-switch$ ./vlan-ports.pl ./log/*sw-{e300,a200-s}*vlan* 2>/dev/null
+----------- ----- 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16{17}18 19 20 21 22 23 24
+sw-a200-s 1 X X X X X X X X X X X X X X X X e0 X X X X X . X eeepy eth0
+sw-a200-s 4 . . . . . . . . . . . . . . . . . . . . . . X X
+sw-a200-s 5 . . . . . . . . . . . . . . . . . . . . . . X X
+sw-a200-s 20 . . . . . . . . . . . . . . . . . . . . . . X X
+----------- ----- 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24
+sw-e300 1 X X X X X X X X X X X X X X X X . X X X X . X X
+sw-e300 4 . . . . . . . . . . . . . . . . t0 . . . . X . X t42 eth0
+sw-e300 5 . . . . . . . . . . . . . . . . . . . . . X . X
+sw-e300 20 . . . . . . . . . . . . . . . . . . . . . X X X
+----------- ----- 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24
+sw-e300-2 1 X X X X X X X X X X X X X X X X X X X X t2 X X X th42 eth2
+sw-e300-2 20 . . . . . . . . . . . . . . . . . . . . . . . X
+
+
+# wierd frames
+
+eeepy:/home/dpavlin# uname -a
+Linux eeepy 3.16.0-4-586 #1 Debian 3.16.51-2 (2017-12-03) i686 GNU/Linux
+
+eeepy:/home/dpavlin# tshark -i eth0 | grep 'frame'
+Capturing on 'eth0'
+ 1 0.000000 00.00.00 -> 80.00.00 FC 86 Unknown frame
+ 2 0.044321 00.00.00 -> 80.00.00 FC 86 Unknown frame
+ 4 0.088655 00.00.00 -> 80.00.00 FC 86 Unknown frame
+ 6 0.132972 00.00.00 -> 80.00.00 FC 86 Unknown frame
+ 11 0.177300 00.00.00 -> 80.00.00 FC 86 Unknown frame
+ 14 0.221633 00.00.00 -> 80.00.00 FC 86 Unknown frame
+
+different wired packets on different machine with newer kernel:
+
+t42:/home/dpavlin# uname -a
+Linux t42 4.9.0-6-686 #1 SMP Debian 4.9.88-1+deb9u1 (2018-05-07) i686 GNU/Linux
+
+t42:/home/dpavlin# tshark -i eth2 | grep Ethernet
+Capturing on 'eth2'
+ 2 0.006734442 fe:80:00:00:00:00 → e5:37:7f:e7:f0:fa 0x0000 86 Ethernet II
+ 5 0.051063305 fe:80:00:00:00:00 → e5:37:7f:e7:f0:fa 0x0000 86 Ethernet II
+ 9 0.095479055 fe:80:00:00:00:00 → e5:37:7f:e7:f0:fa 0x0000 86 Ethernet II
+ 11 0.139803448 fe:80:00:00:00:00 → e5:37:7f:e7:f0:fa 0x0000 86 Ethernet II
+ 17 0.184132590 fe:80:00:00:00:00 → e5:37:7f:e7:f0:fa 0x0000 86 Ethernet II
+ 20 0.228461174 fe:80:00:00:00:00 → e5:37:7f:e7:f0:fa 0x0000 86 Ethernet II
+ 22 0.273977679 fe:80:00:00:00:00 → e5:37:7f:e7:f0:fa 0x0000 86 Ethernet II
+ 25 0.317120297 fe:80:00:00:00:00 → e5:37:7f:e7:f0:fa 0x0000 86 Ethernet II
+ 30 0.361353892 fe:80:00:00:00:00 → e5:37:7f:e7:f0:fa 0x0000 86 Ethernet II
+ 33 0.405682196 fe:80:00:00:00:00 → e5:37:7f:e7:f0:fa 0x0000 86 Ethernet II
+ 34 0.450103254 fe:80:00:00:00:00 → e5:37:7f:e7:f0:fa 0x0000 86 Ethernet II
+ 35 0.494430162 fe:80:00:00:00:00 → e5:37:7f:e7:f0:fa 0x0000 86 Ethernet II
+ 37 0.538770200 fe:80:00:00:00:00 → e5:37:7f:e7:f0:fa 0x0000 86 Ethernet II
+ 40 0.583004074 fe:80:00:00:00:00 → e5:37:7f:e7:f0:fa 0x0000 86 Ethernet II
+
+those where also visible as Unknown frame on eeepy on same port.
+
projects / dell-switch / blobdiff