As a result, it became clear that it is the upper switch problem.
"suppress broadcast".
admin> show configuration firewall family ethernet-switching filter arp-issue-ae3
term arp {
from {
source-mac-address {
00:23:34:8c:5c:c0/48;
}
ether-type arp;
}
then {
accept;
count count-3560-ae3;
}
}
term default {
then accept;
}
{master:2}
admin> show configuration firewall family ethernet-switching filter arp-issue-ae4
term arp {
from {
source-mac-address {
00:23:34:8c:5c:c0/48;
}
ether-type arp;
}
then {
accept;
count count-3560-ae4;
}
}
term default {
then accept;
}
{master:2}
admin> show configuration firewall family ethernet-switching filter arp-issue-ae7
term arp {
from {
source-mac-address {
00:23:34:8c:5c:c0/48;
}
ether-type arp;
}
then {
accept;
count count-3560-ae7;
}
}
term default {
then accept;
}Filter: arp-issue-ae4 Counters: Name Bytes Packets count-3560-ae4 3648 57 Filter: arp-issue-ae3 Counters: Name Bytes Packets count-3560-ae3 89792 1403 Filter: arp-issue-ae7 Counters: Name Bytes Packets count-3560-ae7 0 0 Filter: arp-issue-ae5 Counters: Name Bytes Packets count-3560-ae5 3008 47
admin> show configuration interfaces ae4
description "To Cisco 3750E";
aggregated-ether-options {
minimum-links 1;
link-speed 10g;
lacp {
active;
periodic fast;
}
}
unit 0 {
family ethernet-switching {
filter {
output arp-issue-ae4;
}
}
}
{master:2}
admin> show configuration interfaces ae7
description "to EX4200";
aggregated-ether-options {
minimum-links 1;
link-speed 10g;
lacp {
active;
periodic fast;
}
}
unit 0 {
family ethernet-switching {
filter {
output arp-issue-ae7;
}
}
}
Test:
4200-sw2 - problem switch.
3560-sw - 4550
3750-sw - 4550
4200-sw1 - 4550
host - 4200-sw2 - 4550
3560-sw send arp request for host. For unknown reason "broadcast" ethernet frame suppresed at interface ae7 to problem switch.