Jumbo frames?

[Auger, Jay (IS)]

Hello world,

I've got an S4 connect to a provider's Ci$co 7600 via 10G interface. They're requiring we allow jumbo frames. All I can find is the command 'set port jumbo enable tg.x.y'.

Anything else I need to do? When I ping with anything larger than 1472, it fails.

ROUTER(S4A)(su)->ping -s 1472 1.2.3.4
PING 1.2.3.4 (1.2.3.4) 1480 bytes of data.
1480 bytes from 1.2.3.4: icmp_seq=0 ttl=255 time=2.24 ms
1480 bytes from 1.2.3.4: icmp_seq=1 ttl=255 time=2.17 ms
1480 bytes from 1.2.3.4: icmp_seq=2 ttl=255 time=1.89 ms
1480 bytes from 1.2.3.4: icmp_seq=3 ttl=255 time=1.73 ms

--- 1.2.3.4 ping statistics ---
4 packets transmitted, 4 received, 0% packet loss, time 2993 ms
rtt min/avg/max = 1/1/2 ms

ROUTER(S4A)(su)->ping -s 1473 1.2.3.4
PING 1.2.3.4 (1.2.3.4) 1481 bytes of data.

--- 1.2.3.4 ping statistics ---
4 packets transmitted, 0 received, 100% packet loss, time 4002 ms

ROUTER(S4A)(su)->

Jay


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[Strebler, Reinhard (SCC)]

Hello Jay,

we do nat have experience with S-series, but I'll try to guve my three
cents...

There ist a command "set mtu {enable | disable}":
Enables or disables path MTU discovery protocol.

Did you try "set mtu enable" (should be enabled by default)?

Did you set all ports, which are belonging to this vlan, to jumbo? Or
are some l2 ports belonging to this vlan left with default mtu?

Which mtu do you see on issueing a "show interface" command?

Kind regards
Reinhard

Post by Auger, Jay (IS)
Hello world,
I’ve got an S4 connect to a provider’s Ci$co 7600 via 10G interface.
They’re requiring we allow jumbo frames. All I can find is the command
‘set port jumbo enable tg.x.y’.
Anything else I need to do? When I ping with anything larger than 1472,
it fails.
ROUTER(S4A)(su)->ping -s 1472 1.2.3.4
PING 1.2.3.4 (1.2.3.4) 1480 bytes of data.
1480 bytes from 1.2.3.4: icmp_seq=0 ttl=255 time=2.24 ms
1480 bytes from 1.2.3.4: icmp_seq=1 ttl=255 time=2.17 ms
1480 bytes from 1.2.3.4: icmp_seq=2 ttl=255 time=1.89 ms
1480 bytes from 1.2.3.4: icmp_seq=3 ttl=255 time=1.73 ms
--- 1.2.3.4 ping statistics ---
4 packets transmitted, 4 received, 0% packet loss, time 2993 ms
rtt min/avg/max = 1/1/2 ms
ROUTER(S4A)(su)->ping -s 1473 1.2.3.4
PING 1.2.3.4 (1.2.3.4) 1481 bytes of data.
--- 1.2.3.4 ping statistics ---
4 packets transmitted, 0 received, 100% packet loss, time 4002 ms
ROUTER(S4A)(su)->
Jay

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[Summers, William]

you need to use

set port jumbo enable <port-string>

and show port jumbo


Here's is my listing from an S4:



Port Number Jumbo Oper Status Jumbo Admin Status Jumbo MTU
----------- ----------------- ------------------ ---------
ge.2.101 Enabled Enabled 10239
ge.2.102 Enabled Enabled 10239
ge.2.103 Enabled Enabled 10239
ge.2.104 Enabled Enabled 10239
ge.2.105 Enabled Enabled 10239
ge.2.106 Enabled Enabled 10239
ge.2.107 Enabled Enabled 10239
ge.2.108 Enabled Enabled 10239
ge.2.109 Enabled Enabled 10239
ge.2.110 Enabled Enabled 10239
ge.2.111 Enabled Enabled 10239
ge.2.112 Enabled Enabled 10239
tg.2.1 Enabled Enabled 10239
tg.2.2 Enabled Enabled 10239
tg.2.3 Enabled Enabled 10239
tg.2.4 Enabled Enabled 10239
tg.2.5 Enabled Enabled 10239
tg.2.6 Enabled Enabled 10239
tg.2.7 Enabled Enabled 10239
tg.2.8 Enabled Enabled 10239

William Summers
Network Administrator
Deerfield Academy
Tel. [phone]
________________________________________
From: Strebler, Reinhard (SCC) [***@kit.edu]
Sent: Friday, April 26, 2013 5:13 AM
To: Enterasys Customer Mailing List
Subject: Re: [enterasys] Jumbo frames?

Hello Jay,

we do nat have experience with S-series, but I'll try to guve my three
cents...

There ist a command "set mtu {enable | disable}":
Enables or disables path MTU discovery protocol.

Did you try "set mtu enable" (should be enabled by default)?

Did you set all ports, which are belonging to this vlan, to jumbo? Or
are some l2 ports belonging to this vlan left with default mtu?

Which mtu do you see on issueing a "show interface" command?

Kind regards
Reinhard

Post by Auger, Jay (IS)
Hello world,
I’ve got an S4 connect to a provider’s Ci$co 7600 via 10G interface.
They’re requiring we allow jumbo frames. All I can find is the command
‘set port jumbo enable tg.x.y’.
Anything else I need to do? When I ping with anything larger than 1472,
it fails.
ROUTER(S4A)(su)->ping -s 1472 1.2.3.4
PING 1.2.3.4 (1.2.3.4) 1480 bytes of data.
1480 bytes from 1.2.3.4: icmp_seq=0 ttl=255 time=2.24 ms
1480 bytes from 1.2.3.4: icmp_seq=1 ttl=255 time=2.17 ms
1480 bytes from 1.2.3.4: icmp_seq=2 ttl=255 time=1.89 ms
1480 bytes from 1.2.3.4: icmp_seq=3 ttl=255 time=1.73 ms
--- 1.2.3.4 ping statistics ---
4 packets transmitted, 4 received, 0% packet loss, time 2993 ms
rtt min/avg/max = 1/1/2 ms
ROUTER(S4A)(su)->ping -s 1473 1.2.3.4
PING 1.2.3.4 (1.2.3.4) 1481 bytes of data.
--- 1.2.3.4 ping statistics ---
4 packets transmitted, 0 received, 100% packet loss, time 4002 ms
ROUTER(S4A)(su)->
Jay

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[Auger, Jay (IS)]

Yeah. I did that:



(S4A)(su)->sh port stat tg.2.8



Port Alias Oper Admin Speed Duplex Type

(truncated) Status Status (bps)

------------ ---------------- -------- ------- ------ ------- ------------------

tg.2.8 up up 10.0G full 10g-sr lc

1 of 1 ports displayed, 1 port(s) with oper status 'up' or 'dormant'.



(S4A)(su)->sh port jumbo tg.2.8



Port Number Jumbo Oper Status Jumbo Admin Status Jumbo MTU

----------- ----------------- ------------------ ---------

tg.2.8 Enabled Enabled 10239



(S4A)(su)->sh mtu



MTU disovery status: Enabled



(S4A)(su)->sh int vlan.0.1528

vlan.0.1528 is Operationally up, Administratively up

MAC-Address is: 00-1f-45-5c-4d-ec

The name of this device is vlan.0.1528

ARP/ND cache limit is 65535

MTU is 1500 bytes <--------------------Not sure how to change this:

Encapsulation ARPA, Loopback not set

IP Policy Routing disabled



(S4A)(su)->set port jumbo enable vlan.0.1528

vlan.0.1528 does not support specified feature.



-----Original Message-----
From: Summers, William [mailto:***@deerfield.edu]
Sent: Friday, April 26, 2013 11:47 AM
To: Enterasys Customer Mailing List
Subject: RE: [enterasys] Jumbo frames?



you need to use



set port jumbo enable <port-string>



and show port jumbo





Here's is my listing from an S4:







Port Number Jumbo Oper Status Jumbo Admin Status Jumbo MTU

----------- ----------------- ------------------ ---------

ge.2.101 Enabled Enabled 10239

ge.2.102 Enabled Enabled 10239

ge.2.103 Enabled Enabled 10239

ge.2.104 Enabled Enabled 10239

ge.2.105 Enabled Enabled 10239

ge.2.106 Enabled Enabled 10239

ge.2.107 Enabled Enabled 10239

ge.2.108 Enabled Enabled 10239

ge.2.109 Enabled Enabled 10239

ge.2.110 Enabled Enabled 10239

ge.2.111 Enabled Enabled 10239

ge.2.112 Enabled Enabled 10239

tg.2.1 Enabled Enabled 10239

tg.2.2 Enabled Enabled 10239

tg.2.3 Enabled Enabled 10239

tg.2.4 Enabled Enabled 10239

tg.2.5 Enabled Enabled 10239

tg.2.6 Enabled Enabled 10239

tg.2.7 Enabled Enabled 10239

tg.2.8 Enabled Enabled 10239



William Summers

Network Administrator

Deerfield Academy

Tel. [phone]

________________________________________

From: Strebler, Reinhard (SCC) [***@kit.edu]

Sent: Friday, April 26, 2013 5:13 AM

To: Enterasys Customer Mailing List

Subject: Re: [enterasys] Jumbo frames?



Hello Jay,



we do nat have experience with S-series, but I'll try to guve my three cents...



There ist a command "set mtu {enable | disable}":

Enables or disables path MTU discovery protocol.



Did you try "set mtu enable" (should be enabled by default)?



Did you set all ports, which are belonging to this vlan, to jumbo? Or are some l2 ports belonging to this vlan left with default mtu?



Which mtu do you see on issueing a "show interface" command?



Kind regards

Reinhard

Post by Auger, Jay (IS)
Hello world,
I've got an S4 connect to a provider's Ci$co 7600 via 10G interface.
They're requiring we allow jumbo frames. All I can find is the
command 'set port jumbo enable tg.x.y'.
Anything else I need to do? When I ping with anything larger than
1472, it fails.
ROUTER(S4A)(su)->ping -s 1472 1.2.3.4
PING 1.2.3.4 (1.2.3.4) 1480 bytes of data.
1480 bytes from 1.2.3.4: icmp_seq=0 ttl=255 time=2.24 ms
1480 bytes from 1.2.3.4: icmp_seq=1 ttl=255 time=2.17 ms
1480 bytes from 1.2.3.4: icmp_seq=2 ttl=255 time=1.89 ms
1480 bytes from 1.2.3.4: icmp_seq=3 ttl=255 time=1.73 ms
--- 1.2.3.4 ping statistics ---
4 packets transmitted, 4 received, 0% packet loss, time 2993 ms
rtt min/avg/max = 1/1/2 ms
ROUTER(S4A)(su)->ping -s 1473 1.2.3.4
PING 1.2.3.4 (1.2.3.4) 1481 bytes of data.
--- 1.2.3.4 ping statistics ---
4 packets transmitted, 0 received, 100% packet loss, time 4002 ms
ROUTER(S4A)(su)->
Jay

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[Markus Kaiser]

Jay,

You are fine. You can't change the MTU of a L3 VLAN interface and don't
need to.
Setting the ports is enough.

Kind regards,

Markus


___________________________

On 30.04.2013, at 16:03, "Auger, Jay (IS)" <***@umassmed.edu> wrote:

Yeah. I did that:



(S4A)(su)->sh port stat tg.2.8



Port Alias Oper Admin Speed Duplex Type

(truncated) Status Status (bps)

------------ ---------------- -------- ------- ------ -------
------------------

tg.2.8 up up 10.0G full 10g-sr
lc

1 of 1 ports displayed, 1 port(s) with oper status 'up' or 'dormant'.



(S4A)(su)->sh port jumbo tg.2.8



Port Number Jumbo Oper Status Jumbo Admin Status Jumbo MTU

----------- ----------------- ------------------ ---------

tg.2.8 Enabled Enabled 10239



(S4A)(su)->sh mtu



MTU disovery status: Enabled



(S4A)(su)->sh int vlan.0.1528

vlan.0.1528 is Operationally up, Administratively up

MAC-Address is: 00-1f-45-5c-4d-ec

The name of this device is vlan.0.1528

ARP/ND cache limit is 65535

MTU is 1500 bytes <--------------------Not sure how to change this:

Encapsulation ARPA, Loopback not set

IP Policy Routing disabled



(S4A)(su)->set port jumbo enable vlan.0.1528

vlan.0.1528 does not support specified feature.



-----Original Message-----
From: Summers, William [mailto:***@deerfield.edu<***@deerfield.edu>]

Sent: Friday, April 26, 2013 11:47 AM
To: Enterasys Customer Mailing List
Subject: RE: [enterasys] Jumbo frames?



you need to use



set port jumbo enable <port-string>



and show port jumbo





Here's is my listing from an S4:







Port Number Jumbo Oper Status Jumbo Admin Status Jumbo MTU

----------- ----------------- ------------------ ---------

ge.2.101 Enabled Enabled 10239

ge.2.102 Enabled Enabled 10239

ge.2.103 Enabled Enabled 10239

ge.2.104 Enabled Enabled 10239

ge.2.105 Enabled Enabled 10239

ge.2.106 Enabled Enabled 10239

ge.2.107 Enabled Enabled 10239

ge.2.108 Enabled Enabled 10239

ge.2.109 Enabled Enabled 10239

ge.2.110 Enabled Enabled 10239

ge.2.111 Enabled Enabled 10239

ge.2.112 Enabled Enabled 10239

tg.2.1 Enabled Enabled 10239

tg.2.2 Enabled Enabled 10239

tg.2.3 Enabled Enabled 10239

tg.2.4 Enabled Enabled 10239

tg.2.5 Enabled Enabled 10239

tg.2.6 Enabled Enabled 10239

tg.2.7 Enabled Enabled 10239

tg.2.8 Enabled Enabled 10239



William Summers

Network Administrator

Deerfield Academy

Tel. [phone]

________________________________________

From: Strebler, Reinhard (SCC) [***@kit.edu]

Sent: Friday, April 26, 2013 5:13 AM

To: Enterasys Customer Mailing List

Subject: Re: [enterasys] Jumbo frames?



Hello Jay,



we do nat have experience with S-series, but I'll try to guve my three
cents...



There ist a command "set mtu {enable | disable}":

Enables or disables path MTU discovery protocol.



Did you try "set mtu enable" (should be enabled by default)?



Did you set all ports, which are belonging to this vlan, to jumbo? Or are
some l2 ports belonging to this vlan left with default mtu?



Which mtu do you see on issueing a "show interface" command?



Kind regards

Reinhard

Post by Auger, Jay (IS)
Hello world,
I’ve got an S4 connect to a provider’s Ci$co 7600 via 10G interface.
They’re requiring we allow jumbo frames. All I can find is the
command ‘set port jumbo enable tg.x.y’.
Anything else I need to do? When I ping with anything larger than
1472, it fails.
ROUTER(S4A)(su)->ping -s 1472 1.2.3.4
PING 1.2.3.4 (1.2.3.4) 1480 bytes of data.
1480 bytes from 1.2.3.4: icmp_seq=0 ttl=255 time=2.24 ms
1480 bytes from 1.2.3.4: icmp_seq=1 ttl=255 time=2.17 ms
1480 bytes from 1.2.3.4: icmp_seq=2 ttl=255 time=1.89 ms
1480 bytes from 1.2.3.4: icmp_seq=3 ttl=255 time=1.73 ms
--- 1.2.3.4 ping statistics ---
4 packets transmitted, 4 received, 0% packet loss, time 2993 ms
rtt min/avg/max = 1/1/2 ms
ROUTER(S4A)(su)->ping -s 1473 1.2.3.4
PING 1.2.3.4 (1.2.3.4) 1481 bytes of data.
--- 1.2.3.4 ping statistics ---
4 packets transmitted, 0 received, 100% packet loss, time 4002 ms
ROUTER(S4A)(su)->
Jay

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