Nope, other than not being able to be channelized into four separate 10Gb interfaces.
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Re: EX4300/EX3400 QSFP+ ports to connect server?
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Re: ping: sendto: Cannot allocate memory - Switch EX4300
Hi,
Thanks for your help. My switch is EX4300 with junos version 13.2X50-D15.3.
I see many logs as below:
Dec 17 09:30:05 R2-SW4300-NOC /kernel: rt_pfe_veto: Memory over consumed. Op 8, rtsm_id 0, msg type 10
Dec 17 09:30:10 R2-SW4300-NOC /kernel: rt_pfe_veto: Memory over consumed. Op 8, rtsm_id 0, msg type 10
Dec 17 09:30:15 R2-SW4300-NOC /kernel: rt_pfe_veto: Memory over consumed. Op 8, rtsm_id 0, msg type 10
Dec 17 09:31:15 R2-SW4300-NOC /kernel: rt_pfe_veto: Memory over consumed. Op 8, rtsm_id 0, msg type 10
Dec 17 09:32:15 R2-SW4300-NOC /kernel: rt_pfe_veto: Memory over consumed. Op 8, rtsm_id 0, msg type 10
Dec 17 09:33:15 R2-SW4300-NOC /kernel: rt_pfe_veto: Memory over consumed. Op 8, rtsm_id 0, msg type 10
Dec 17 09:34:15 R2-SW4300-NOC /kernel: rt_pfe_veto: Memory over consumed. Op 8, rtsm_id 0, msg type 10
I upload the RSI and log messages file to this thread.
Please help me.
Thank you
Hoang
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Re: ping: sendto: Cannot allocate memory - Switch EX4300
Hi Hoang ,
Seems like memory is getting exhausted.
Would you be able to perform a switch reboot? This should resolve the issue for now.
JUNOS 13.2 is old software. You may consider upgrade the switch to one of the latest software as well.
-Ajo Thomas
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random high latency issues on ex2300 series switches
Wondering if anyone else is seeing this.
I randomly run into really high latency issues pinging/monitoring the management IP address of some of my ex2300 series switches. Latency of 2000+ms or just plain timeouts will happen. I will start getting alerts from my SNMP monitoring system. It doesn't seem to impact the devices plugged into the switches, just the management. Sometimes I won't be able to SSH into them it gets so bad. The logs never really show anything telling of the problem.
Any ideas?
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Re: random high latency issues on ex2300 series switches
I know the ex2300’s does not have a very powerful routing engine CPU and have seen when aggressively monitoring the device RE utilization gets high and icmp can be delayed.
I would see if your device has high utilization during these events and if so, what process is using these resources.
https://kb.juniper.net/InfoCenter/index?page=content&id=KB26261
(on mobile, please excuse any misspelling)
I would see if your device has high utilization during these events and if so, what process is using these resources.
https://kb.juniper.net/InfoCenter/index?page=content&id=KB26261
(on mobile, please excuse any misspelling)
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EIGRP through EX2300
I have a number of clients that use dot1q tunnels between sites. A few of those pass EIGRP. On cisco devices using dot1q, and Juniper non-ELS switches it works just fine. On ELS switches like the EX2300 the EIGRP session starts, but fails because the multicast response isn't getting through.
Is there any ideas on what could be causing this or how to make it work? I'm quickly running out of ideas except go back to an EX3300.
Here is the interface and VLAN configs on my client ex2300 switch that hands off dot1 on ge-0/0/2 with xe-0/1/0 as upstream.
ge-0/0/2 {
flexible-vlan-tagging;
native-vlan-id 1;
mtu 9216;
encapsulation extended-vlan-bridge;
unit 0 {
vlan-id-list 1-4094;
input-vlan-map push;
output-vlan-map pop;
family ethernet-switching {
filter {
input rate-limit-10m;
}
}
}
}
xe-0/1/0 {
flexible-vlan-tagging;
mtu 9216;
encapsulation extended-vlan-bridge;
unit 118 {
vlan-id 118;
}
unit 677 {
vlan-id 677;
}
unit 1556 {
vlan-id 1556;
}
}
protocols {
igmp-snooping {
vlan IMG.IAS.0677;
vlan IMG.IAS.0118;
}
layer2-control {
bpdu-block {
interface ge-0/0/2 {
drop;
}
mac-rewrite {
interface ge-0/0/2 {
enable-all-ifl;
protocol {
stp;
vtp;
cdp;
lldp;
}
}
}
}
vlans {
C60.ETS.116034 {
interface xe-0/1/0.1556;
interface ge-0/0/2.0;
switch-options {
no-mac-learning;
}
}
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Re: EIGRP through EX2300
Just a workaround, you may try static EIGRP neighbor (unicast packets) if multicast is not working
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Re: dual-side mc-lag with QFX 5100
Thanks for the follow-up--I've updated the configs above.
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Re: EIGRP through EX2300
wrote: Just a workaround, you may try static EIGRP neighbor (unicast packets) if multicast is not working
I thought about that. Even brought up just static routing as a temporary solution. Customer can't make network changes for administrative reasons.
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Virtual chassis : Master election scenario
Hi everyone,
I have some questions about the master election in virtual chassis.
Please consider following scenarios:
We have three switches SW1,SW2,SW3
All are using default priority.
We are using dynamic method to form Virtual chassis
Case#1
SW1 is master, Sw2 is back, SW3 is a line card. Virtual chasis is formed and 30 minutes have elapsed
We introduce SW4 with priority 128 into Virtual chassis.
As per juniper , following is tie breaker:
1)Choose the member with the highest user-configured mastership priority (255 is the highest possible value). A switch with a mastership priority of 0 will always stay in the linecard role.
2)Choose the member that was master the last time the Virtual Chassis configuration booted.
3)Choose the member that has been included in the Virtual Chassis configuration for the longest period of time. (For this to be a deciding factor, there has to be a minimum time lapse of 1 minute between the power-ons of the individual interconnected member switches
4)Choose the member with the lowest MAC address.
Is it not true to criteria (3) above will be used to break the tie? The reason I said that Virtual chassis never booted, we form the Virtual chassis and never booted the Virtual chassis .
Case#2
SW1 is master, Sw2 is back, SW3 is a line card. Virtual chasis is formed.
We reboot the virtual chassis first time . SW1 came up online first, SW2 2nd, SW3 third, Virtual chassis forms with
SW1 Master
SW2 Back up RE
SW3 Line card.
After 30 minuutes, we introduce SW4 with priority 128 into virtual chassis .
Following criteria will be used to break the tie:
1)Choose the member with the highest user-configured mastership priority (255 is the highest possible value). A switch with a mastership priority of 0 will always stay in the linecard role.
2)Choose the member that was master the last time the Virtual Chassis configuration booted.
3)Choose the member that has been included in the Virtual Chassis configuration for the longest period of time. (For this to be a deciding factor, there has to be a minimum time lapse of 1 minute between the power-ons of the individual interconnected member switches
4)Choose the member with the lowest MAC address.
Which crietria above, will above will apply to SW4? is it not (2)?
Thanks and have a nice weekend!!
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Re: Virtual chassis : Master election scenario
It’s been a while that I messed with default values for Virtual Chassis, I believe it’s <3> in this case.
I will say however, if this is for a production environment please consider statically assigning roles via serial numbers. I can’t tell you the number of times using non-static virtual chassis configurations has caused more issues then added redundantcy (generally after a power failure).
https://www.juniper.net/documentation/en_US/junos/topics/task/configuration/virtual-chassis-mx-series-preprovisioned-member-info.html
(On mobile, please ignore mistakes)
I will say however, if this is for a production environment please consider statically assigning roles via serial numbers. I can’t tell you the number of times using non-static virtual chassis configurations has caused more issues then added redundantcy (generally after a power failure).
https://www.juniper.net/documentation/en_US/junos/topics/task/configuration/virtual-chassis-mx-series-preprovisioned-member-info.html
(On mobile, please ignore mistakes)
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Virtual chassis management
Hi everyone,
Please consider the following example
Consider following example:
Below we have three Switches in Virtual chassis, each SW has me port connected to different subnet.
Case1:
SW1(Master)---me---199.199.199.1/24---Network
SW2(Back up)---me---200.200.200.1/24---|
SW3( line card)--me--198.198.198.1/24--|
1) if we do ssh using 198.198.198.1 which is ip on SW3's ME, will SW3 dirtect that to master SW1? or SW3 will allow SSH to itself?
Case2:
SW1(Master)---me---199.199.199.1/24---Network
SW2(Back up)---me---199.199.199.2/24---|
SW3( line card)--me--199.199.199.3/24--|
1) If we do SSH 199.199.199.3, will SW3 direct it to SW1 ( master)?
Thanks and have a nice weekend!!
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EX4300-48T and EX4300-32F Virtual chassis in Mixed mode questions
Hi everyone,
1)As per Juniper doc. ex4300-48T and EX4300-32F can be configured in Virtual chassis without mixed mode.
What if we still configure them as mixed mode? The reason I said that later on if we have to add another say EX4200 into the Virtual chassis , then we do not need to go back and change the mode to mixed. Am I correct? we must not use mixed mode when connecting EX 4300-48T and EX4300-32F?
2) Juniper doc says
Virtual Chassis
You can interconnect a maximum of 10 EX4300 switches to form a Virtual Chassis. You can operate these interconnected switches as a single, logical device with a single IP address.
You can use the following ports to configure an EX4300 switch in a Virtual Chassis:
For 24-port and 48-port EX4300 switches except EX4300-48MP and EX4300-48MP-S switches:
QSFP+ ports configured as VCPs
SFP+ uplink module ports configured as VCPs
For 32-port EX4300 switches:
QSFP+ ports (built-in) or QSFP+ uplink module ports configured as VCPs
SFP+ uplink module ports configured as VCPs
NOTEThe four built-in SFP+ ports on 32-port EX4300 switches cannot be configured as VCPs.
Is that correct we can not use built-in SFP+ ports for Virtual chassis ?
Thanks and have a nice weekend!!
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Re: EX4300-48T and EX4300-32F Virtual chassis in Mixed mode questions
There are limitations to the mixed-mode virtual chassis compatibilities. I don't think you can cross generations of switches due to the fact they are completely different ASIC manufacturer's.
Reference this documentation: https://www.juniper.net/documentation/en_US/junos/topics/concept/virtual-chassis-ex-qfx-series-mixed-understanding.html
Also, pick a version of Junos release notes and go look at known issues. In my experience, I found the list of known issues in mixed mode virtual chassis to be enough to keep me away from it. If you can, I would recommend keeping it simple and avoid getting too creative with mixed-mode virtual chassis.
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Re: EX4300-48T and EX4300-32F Virtual chassis in Mixed mode questions
Thanks for the response.
I was just curious how would Virtual Chassis behave I used the wrong mode. As per your links, Juniper has listed the possible combinations for EX 4300 and what mode they should be set to. What happens if we do not se the mode right?
Unfortunately, I did not have the hardware to test so I thought somebody may have done it and share his/her experience.
Have a nice weekend!!
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Split virtual chassis issue any good links
Hi everyone,
I could not find any detail docs why split virtual chassis occur in Virtual chassis. Most of the link I find describe what it is but not why it happens.
Any good link will be appreciated!!
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Re: ping: sendto: Cannot allocate memory - Switch EX4300
Hi,
What is your SW?
Problem with ping is the only issue on your switch? Are there any other error/log related to memory?
Thanks,
Alex
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VC split condition in Virtual Chassis
Hi everyone
Below link lists various scenarious showing " VC SPLIT CONDITION"
https://kb.juniper.net/InfoCenter/index?page=content&id=KB19732&cat=EX4200_1&actp=LIST
1)How long Master RE switch wait if it can not see BACKUP RE, before declaring SPLIT Condition and declares itself as Line card?
###############
Consider the following:
MASTER RE ( SW1)VCP0---- VCP0-BACKUP RE(SW2)VCP1--VCP1SW3 ( Linecard)
Let say VCP0 on MASTER RE goes down, will MASTER RE rightaway declare itself as line card or will it still wait for " Timer" to expire and then decalre itslef as " LINE CARD" ?
Have a nice weekend!!
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Can Back up RE in Virtual Chassis be preempted by new higher priority switch ?
Hi everyone,
I did find Juniper doc describing how MASTER SW is elected in VC, however I do not see how the Virtual Chassis behave in following situation:
Existing Virtual Chassis state( using dynamic method i.e no non-provisioned method):
SW1 MASTE RE Priority 140
SW2 BACK UP RE priority 130
New SW 3 with priority 131 is connected to VC, will SW3 become new BACK UP RE and SW2 is demoted to line card role?
Thanks and have a nice weekend!!
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How to limit bandwidth on the interface of ethernet switch EX3200
Hi everyone,
I want to limit bandwidth on the interface of switch EX3200 so what I have to do for this?
Please help me, thanks very much.
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