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Adding a EX2300-C POE+ switch to a Pair of EX3300 Switches in a Virtual Chassis Configuration

August 20, 2017, 9:24 am
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I currently have 2 EX3300 switches setup as a virtual chassis. I have setup a number of vlans that is routable (RVIs) in the VC setup. I just received a EX2300-C POE+ unit and want to add this switch to my current setup. The EX2300 did not come with the virtual chassis license. So I assume I cannot add the EX2300 as a new member to the virtual chassis setup.

 

What is the best option to connect the EX2300 to the EX3300 virtual chassis configuration? Additionally, will I need to create the same vlans on the EX2300 that is on the EX3300 switches? Does the vlans on the EX2300 needs to be rountable (RVI) as well?

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Re: Adding a EX2300-C POE+ switch to a Pair of EX3300 Switches in a Virtual Chassis Configuration

August 20, 2017, 11:04 am
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Ex2300's can only VC with other 2300's so your only option is to connect the ex2300 to the existing VC with one or more uplinks configured as trunk ports. If you configure a multi-member ae interface you can avoid spanning tree. You will need to configure the vlans on the 2300 but not rvi's. You may want to configure an rvi for management access if you don't have a dedicated mgmt network in place already.
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Re: Adding a EX2300-C POE+ switch to a Pair of EX3300 Switches in a Virtual Chassis Configuration

August 20, 2017, 12:54 pm
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Not sure what you mean by "If you configure a multi-member ae interface you can avoid spanning tree".

 

The plan is to use 10G port xe-0/1/1 and xe1/1/1 on the EX3300 switches as a LAGG trunk port to the EX2300 10G ports.. Will that work?

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Re: Adding a EX2300-C POE+ switch to a Pair of EX3300 Switches in a Virtual Chassis Configuration

August 20, 2017, 2:40 pm
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Yes exactly--that is what an ae (aggregated Ethernet) interface is.
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Re: Sporadic Ping Issue

August 21, 2017, 2:54 am
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When I see changing reachability, I wonder about the spanning tree status.

 

Are there loops in this system?

What is the spanning tree status of the ports in the path?

 

The other item I would check is port capacity for bandwidth, is anything potentially overloaded.

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Re: Strange log messages in EX2300

August 21, 2017, 5:34 am
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We did turned off SNMP checks of this switch, but messages are still generating.

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error: op script fails with exit code 0x4500

August 21, 2017, 7:49 am
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New EX2300-48 PoE, just fired up, went to ezsetup, and when I input the new passwords for root, I get the following

 

error: op script fails with exit code 0x4500

Try entering the password again.

Enter new root password:

 

{master:0}
root> show system software
fpc0:
--------------------------------------------------------------------------
fips-mode-arm-32-20161230.114620_builder_junos_151_x53_d55 -- fips mode
jail-runtime-arm-32-20161226.342161_builder_head -- jail runtime
jdocs-ex-arm-32-20161230.114620_builder_junos_151_x53_d55 -- jdocs ex
jpfe-EX34XX-arm-32-20161230.114620_builder_junos_151_x53_d55 -- jpfe EX34XX
junos-daemons-arm-32-20161230.114620_builder_junos_151_x53_d55 -- junos daemons
junos-dp-crypto-support-arm-32-20161230.114620_builder_junos_151_x53_d55 -- junos dp crypto support
junos-dp-crypto-support-mtx-arm-32-20161230.114620_builder_junos_151_x53_d55 -- junos dp crypto support mtx
junos-libs-arm-32-20161230.114620_builder_junos_151_x53_d55 -- junos libs
junos-libs-ex-arm-32-20161230.114620_builder_junos_151_x53_d55 -- junos libs ex
junos-modules-arm-32-20161230.114620_builder_junos_151_x53_d55 -- junos modules
junos-modules-ex-arm-32-20161230.114620_builder_junos_151_x53_d55 -- junos modules ex
junos-platform-ex-arm-32-20161230.114620_builder_junos_151_x53_d55 -- junos platform ex
junos-runtime-arm-32-20161230.114620_builder_junos_151_x53_d55 -- junos runtime
junos-runtime-ex-arm-32-20161230.114620_builder_junos_151_x53_d55 -- junos runtime ex
jweb-ex-arm-32-20161230.114620_builder_junos_151_x53_d55 -- jweb ex
junos-net-prd-arm-32-20161230.114620_builder_junos_151_x53_d55 -- junos net prd
os-crypto-arm-32-20161226.342161_builder_head -- os crypto
os-kernel-prd-arm-32-20161226.342161_builder_head -- os kernel prd
os-libs-11-arm-32-20161226.342161_builder_head -- os libs
os-runtime-arm-32-20161226.342161_builder_head -- os runtime
py-base-arm-32-20161230.114620_builder_junos_151_x53_d55 -- py base
py-extensions-arm-32-20161230.114620_builder_junos_151_x53_d55 -- py extensions
os-zoneinfo-arm-32-20161226.342161_builder_head -- os zoneinfo

{master:0}

 

Any idea what this is for, or do I need to RMA.?

 

Thanks

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Re: switches software upgrade

August 22, 2017, 1:27 am
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Is there any known issue with running 15.1R5 on an EX4550 in a virtual chassis?  I tried updating a pair of EX4550 from 12.3 to 15.1R5 and the devices refused to cluster. Virtual chassis membership only showed the local switch when viewed on each member.  Returning to 12.3 saw the issue dissapear. 

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Re: switches software upgrade

August 22, 2017, 5:04 am
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I would recommend you just stay on 12.3 for the time being.  Support for 12.3 has been extended until at least 6/30/2018.  If you are going to run any version of 15.1 on legacy (non-ELS) EX switches, you should use a minimum of 15.1R6-S2 at this time.  I do not know if you would see the same situation with 15.1R6-S2.

 

I do assume for your 2-member EX4550 VC that no split-detect was enabled, yes?  Without this, you will see the VC split upon a reboot.  Reboot is part of upgrade process.

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Config change

August 22, 2017, 6:51 am
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How would I go about undoing this change?

 

[edit ethernet-switching-options analyzer VOIP]
'output'
Analyzer output interface ge-3/0/47.0 should not be added to any VLAN
error: configuration check-out failed

 

I attempted to add that interface to a VLAN. I want to utilize ge-3/0/47.0 as an access port and add it to a VLAN. It will not commit changes due to this. I no longer need this port configured as a mirror.

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Re: Config change

August 22, 2017, 7:24 am
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delete ethernet-switching-options analyzer VOIP output interface ge-3/0/47.0

To find out what delete command you need just run show | display set and then replace "set" with "delete"

 

Regards, Wojtek

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Re: Config change

August 22, 2017, 7:32 am
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Thanks


[obtps logo]
Sean McCoy
Network Administrator
Old Bridge Township School District
Patrick A. Torre Administration Building
4207 Route 516
Matawan, NJ 07747
Phone-(732)290-3900 x4780
Cell-(732)742-6915
Email-sean.mccoy@obps.org
[NetworkPlus Logo Certified_15]
"Technology is part of the solution, not the problem"
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Re: Config change

August 22, 2017, 7:32 am
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Thanks


[obtps logo]
Sean McCoy
Network Administrator
Old Bridge Township School District
Patrick A. Torre Administration Building
4207 Route 516
Matawan, NJ 07747
Phone-(732)290-3900 x4780
Cell-(732)742-6915
Email-sean.mccoy@obps.org
[NetworkPlus Logo Certified_15]
"Technology is part of the solution, not the problem"
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Spanning Tree on ELS EX switches

August 22, 2017, 8:07 am
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Hi,

 

I have been testing the "bpdu-block-on-edge" command on an EX3400 on 15.1X53-D56. I have noticed that the recovery timeout appears to now be configured on the interface rather than globally.

 

When I delibrately loop two ports the port is disabled.

 

xxx> show spanning-tree interface ge-0/0/2

Spanning tree interface parameters for instance 0

Interface Port ID Designated Designated Port State Role
port ID bridge ID Cost
ge-0/0/2 128:490 128:490 4096.e8b6c2663b61 20000 BLK DIS (Bpdu-Incon)

 

But the port never recovers.

 

Also I can not find a command to clear it manually!

 

xxx> clear ethernet-switching recovery-timeout interface ge-0/0/2

 

xxx> show spanning-tree interface ge-0/0/2

Spanning tree interface parameters for instance 0

Interface Port ID Designated Designated Port State Role
port ID bridge ID Cost
ge-0/0/2 128:490 128:490 4096.e8b6c2663b61 20000 BLK DIS (Bpdu-Incon)

 

Please could anyone help?

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Re: Spanning Tree on ELS EX switches

August 22, 2017, 8:45 am
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Try

 

[edit protocols layer2-contorl bpdu-block interface interface-name]
user@switch# set disable-timeout seconds

and

user@switch> clear error bpdu interface (all | interface-name)

Regards, Wojtek

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Re: EX4500 mac table grows to limit, all mac ages are 0

August 22, 2017, 10:28 am
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Just to bump this a bit. I have 4 of these "top of room" EX4500 virtual chassis switches. On 2 of them I can clearly see ages on some mac addresses, and they count down. There are many macs that have an age of 0. On the other 2 switches, all macs have an age of 0. The switch that isn't causing me a problem doesn't have misbehaving machines so it's mac table is reasonable.

 

I'm wondering why a mac address gets an age of 0 though. I'll have to study that.

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Re: Spanning Tree on ELS EX switches

August 22, 2017, 10:37 am
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Hi Wdudys,

 

The manual clear works! thanks.

 

However, I am still having an issue with the auto recovery. I do not seem to be getting the same options as you:

 

{master:0}[edit protocols layer2-control bpdu-block interface ge-0/0/2]
lab@xxx# set ?
Possible completions:
+ apply-groups Groups from which to inherit configuration data
+ apply-groups-except Don't inherit configuration data from these groups
disable Disable bpdu-block on a port
drop Drop xSTP BPDUs
{master:0}[edit protocols layer2-control bpdu-block interface ge-0/0/2]
lab@xxx# set disable ?
Possible completions:
<[Enter]> Execute this command
+ apply-groups Groups from which to inherit configuration data
+ apply-groups-except Don't inherit configuration data from these groups
drop Drop xSTP BPDUs
| Pipe through a command

 

As you can see, there is no "disable-timeout" option.

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IP source guard on ELS EX3400

August 22, 2017, 11:21 am
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The below link states that IP Source guard is supported on EX switches with ELS.

 

https://www.juniper.net/documentation/en_US/junos/topics/task/configuration/port-security-ip-source-guard-cli-els.html

 

But when I go to configure it, the option is not there. Can anyone explain why this is?

 

{master:0}[edit vlans VOIP-HOSTS forwarding-options dhcp-security]
lab@xxx# set ?
Possible completions:
+ apply-groups Groups from which to inherit configuration data
+ apply-groups-except Don't inherit configuration data from these groups
arp-inspection Enable dynamic ARP inspection
> dhcpv6-options DHCPv6 option processing for snooped packets
> group Define a DHCP security group for overriding defaults
neighbor-discovery-inspection Enable neighbor discovery inspection
no-dhcp-snooping Disable dhcp snooping
no-dhcpv6-snooping Disable DHCPv6 snooping
> option-82 DHCP option-82 processing for snooped packets

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Re: IP source guard on ELS EX3400

August 22, 2017, 11:47 am
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maybe because of the fact that the ex3400 does not run ELS ( the 4300 does run ELS) so you have to google for the old syntax

 

regards

alexander

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Re: IP source guard on ELS EX3400

August 22, 2017, 12:21 pm
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