Well, I was finally able to resolve my issue with the configuration on the EX2300-C switch. For the trunk interfaces / ports including the link aggregation (ae0) on the EX2300 switch, I had to add the default Vlan (1) as a member to all trunk ports and as the native vlan.
Now I would like to understand why it is working. Maybe someone can explain to me.
The changes to the configuration is highlighted in bold.
## Last changed: 2017-08-25 19:51:30 EDT
version 15.1X53-D56;
system {
auto-snapshot;
time-zone US/Eastern;
root-authentication {
encrypted-password "$5$0ljxQZMc$AOvp4IMWtCxg2.bTFp.n0YKwwAp.scb3i625MeKbK.6";
}
services {
ssh {
protocol-version v2;
}
telnet;
netconf {
ssh;
}
web-management {
http;
}
}
syslog {
user * {
any emergency;
}
file messages {
any notice;
authorization info;
}
file interactive-commands {
interactive-commands any;
}
}
processes {
dhcp-service {
traceoptions {
file dhcp_logfile size 10m;
level all;
flag all;
}
}
}
}
chassis {
aggregated-devices {
ethernet {
device-count 1;
}
}
}
interfaces {
ge-0/0/0 {
native-vlan-id 1;
unit 0 {
family ethernet-switching {
interface-mode trunk;
vlan {
members [ 30 default ];
}
storm-control default;
}
}
}
ge-0/0/1 {
native-vlan-id 1;
unit 0 {
family ethernet-switching {
interface-mode trunk;
vlan {
members [ 30 default ];
}
storm-control default;
}
}
}
ge-0/0/2 {
native-vlan-id 1;
unit 0 {
family ethernet-switching {
interface-mode trunk;
vlan {
members [ 30 default ];
}
storm-control default;
}
}
}
ge-0/0/3 {
native-vlan-id 1;
unit 0 {
family ethernet-switching {
interface-mode trunk;
vlan {
members [ 30 default ];
}
storm-control default;
}
}
}
ge-0/0/4 {
unit 0 {
family ethernet-switching {
storm-control default;
}
}
}
ge-0/0/5 {
unit 0 {
family ethernet-switching {
storm-control default;
}
}
}
ge-0/0/6 {
unit 0 {
family ethernet-switching {
storm-control default;
}
}
}
ge-0/0/7 {
unit 0 {
family ethernet-switching {
storm-control default;
}
}
}
ge-0/0/8 {
unit 0 {
family ethernet-switching {
storm-control default;
}
}
}
ge-0/0/9 {
unit 0 {
family ethernet-switching {
storm-control default;
}
}
}
ge-0/0/10 {
unit 0 {
family ethernet-switching {
storm-control default;
}
}
}
ge-0/0/11 {
unit 0 {
family ethernet-switching {
storm-control default;
}
}
}
ge-0/1/0 {
unit 0 {
family ethernet-switching {
storm-control default;
}
}
}
xe-0/1/0 {
ether-options {
802.3ad ae0;
}
}
ge-0/1/1 {
unit 0 {
family ethernet-switching {
storm-control default;
}
}
}
xe-0/1/1 {
ether-options {
802.3ad ae0;
}
}
ae0 {
description "A LAG Uplink to EX3300 Virtual Chassis Switch";
native-vlan-id 1;
aggregated-ether-options {
minimum-links 1;
lacp {
active;
periodic fast;
}
}
unit 0 {
family ethernet-switching {
interface-mode trunk;
vlan {
members [ 30 default ];
}
}
}
}
irb {
unit 0 {
family inet {
dhcp {
vendor-id Juniper-ex2300-c-12p;
}
}
}
}
me0 {
unit 0 {
family inet {
address 192.168.99.30/24;
}
}
}
}
forwarding-options {
storm-control-profiles default {
all;
}
}
routing-options {
static {
route 0.0.0.0/0 next-hop 192.168.99.1;
}
}
protocols {
lldp {
interface all;
}
lldp-med {
interface all;
}
igmp-snooping {
vlan default;
}
rstp {
interface ge-0/0/0;
interface ge-0/0/1;
interface ge-0/0/2;
interface ge-0/0/3;
interface ge-0/0/4;
interface ge-0/0/5;
interface ge-0/0/6;
interface ge-0/0/7;
interface ge-0/0/8;
interface ge-0/0/9;
interface ge-0/0/10;
interface ge-0/0/11;
interface ae0;
}
}
vlans {
Guest_Network {
description "Guest Network";
vlan-id 30;
}
}
poe {
interface all;
}