Sunday, April 5, 2015
Friday, April 3, 2015
Tools for network monitoring
Smokeping - jitter monitoring
FlowMon - netFlow monitoring
https://www.invea.com/en/products/flowmon
sFlow + LogStash
https://github.com/NETWAYS/sflow
NetFlow Monitoring Tools
http://www.cisco.com/c/en/us/products/ios-nx-os-software/ios-netflow/networking_solutions_products_genericcontent0900aecd805ff728.html
Observium - on top of NAGIOS
sFlowTrend - sFlow/netFlow monitoring
http://www.inmon.com/products/sFlowTrend.phpFlowMon - netFlow monitoring
https://www.invea.com/en/products/flowmon
sFlow + LogStash
https://github.com/NETWAYS/sflow
NetFlow Monitoring Tools
http://www.cisco.com/c/en/us/products/ios-nx-os-software/ios-netflow/networking_solutions_products_genericcontent0900aecd805ff728.html
N-Series Poe
Did you open a case with
tech-support
I’ve seen issues where devices
did report as Class2 or 3 devices while they should be 0 or even high-power
(POE+) and that it was just slightly over the limit and some ports seemed to be
a little bit more stringent then others.
Consider indeed:
· Setting the (lower) port on interface level as ‘power
inline high-power’
· On global or stack-unit level set ‘power inline
management static’
· Remove ‘legacy’ as dynamic method
· Or set it indeed as ‘class based’ power
And else: open a case with
tech-support to fully investigate and maybe use debug commands to find exact
reason why it did go off.
The ‘work-around’ for removing
ISDP is only applicable on Cisco devices that refuse to use industry standard
methods if it thinks it is connected to a Cisco device – mainly Cisco
multi-radio AP’s. Because they do receive ISDP info they do think they should
also get POE info over CDP – but that part is ‘closed code’ and not open part
of CDP (which is thus ISDP).
You can also work around that in
another way then removing/disabling ISDP: you can tell the Cisco device it
should accept POE negotiation form a specific device (MAC address of the switch/stack
in question). This last behavior is imho clearly a Cisco problem – it
does NOT check if it is talking to a device that supports full CDP including
Cisco proprietary POE negotiation over CDP: it just sees ‘something that looks
like CDP’ and then refuses to use the industry standard unless specifically
told to do so (via command on Cisco box like: power inline negotiation injector
<attached> which will then be replaced
by the switch MAC address in the Cisco startup-config).
Jan
Jan
From:
Malone, Jim
Sent: Thursday, April 02, 2015 3:36 PM
To: Meister, Benjamin; WW Networking Domain
Subject: RE: N-Series Poe - Ahhhh . . .
Sent: Thursday, April 02, 2015 3:36 PM
To: Meister, Benjamin; WW Networking Domain
Subject: RE: N-Series Poe - Ahhhh . . .
Well,
I am out of guesses
The
only other option is go to 6.2.0.5.
Nothing
specific on Release Notes.
Jim Malone
Network Sales Engineer
Dell | Networking | VA, DC
571-232-0340
From: Meister, Benjamin
Sent: Thursday, April 02, 2015 10:22 AM
To: Malone, Jim; WW Networking Domain
Subject: RE: N-Series Poe - Ahhhh . . .
Sent: Thursday, April 02, 2015 10:22 AM
To: Malone, Jim; WW Networking Domain
Subject: RE: N-Series Poe - Ahhhh . . .
6.1.2.4
~ Benjamin R. Meister
Networking & Converged Infrastructure Sales
Dell | Enterprise Solutions,
Networking
Office + 1.646.409.1330
Mobile +
1.646.489.2035
From: Malone, Jim
Sent: Thursday, April 02, 2015 10:19 AM
To: Meister, Benjamin; WW Networking Domain
Subject: RE: N-Series Poe - Ahhhh . . .
Sent: Thursday, April 02, 2015 10:19 AM
To: Meister, Benjamin; WW Networking Domain
Subject: RE: N-Series Poe - Ahhhh . . .
What
version of OS are you running?
|
Release 6.1.0.6 Summary
|
User Impact
|
Resolution
|
Affected Platforms
|
|
Issues powering up POE devices on certain switch port
interfaces.
|
When dot13af and legacy mode is enabled and the first
12/24 switch ports are in error status, the last 12/24 ports are stay off.
|
Fixed high port powering issue by updating the PoE
controller firmware version to 263_75.
Please wait for few minutes for PoE controller
firmware update to complete on switch boot-up.
You will see the below log messages on switch boot-up
after switch firmware upgrade.
<187> Jun 17 04:51:57 172.25.136.215-1
POE[144021428]: hpc_poe_pwrdsne.c(6733) 582
|
N2xxxP/N3xxxP
|
Jim Malone
Network Sales Engineer
Dell | Networking | VA, DC
571-232-0340
From: Meister, Benjamin
Sent: Thursday, April 02, 2015 10:06 AM
To: Malone, Jim; WW Networking Domain
Subject: RE: N-Series Poe - Ahhhh . . .
Sent: Thursday, April 02, 2015 10:06 AM
To: Malone, Jim; WW Networking Domain
Subject: RE: N-Series Poe - Ahhhh . . .
According to the Show tech:
Power..........................................
On
Total
Power.................................... 1800 Watts
Threshold
Power................................ 1620 Watts
Consumed
Power................................. 82 Watts
Usage
Threshold................................ 90%
Power Management
Mode.......................... Dynamic
Power Detection
Mode........................... dot3af+legacy
Unit Description
Status Average
Current Since
Power Power
Date/Time
(Watts)
(Watts)
---- -----------
----------- ---------- -------- -------------------
1
System OK
0.2 39.8
1
PS-1
OK
N/A
N/A 03/14/2015 06:40:57
1
PS-2 OK
N/A
N/A 03/14/2015 06:40:57
~ Benjamin R. Meister
Networking & Converged Infrastructure Sales
Dell | Enterprise Solutions,
Networking
Office + 1.646.409.1330
Mobile +
1.646.489.2035
From: Malone, Jim
Sent: Thursday, April 02, 2015 9:59 AM
To: Meister, Benjamin; WW Networking Domain
Subject: RE: N-Series Poe - Ahhhh . . .
Sent: Thursday, April 02, 2015 9:59 AM
To: Meister, Benjamin; WW Networking Domain
Subject: RE: N-Series Poe - Ahhhh . . .
Question:
do you have the default 750watt power supply?
Question:
is this the only powered device plugged in?
Something
to check and work with.
Power
Inline Priority – by default all ports are set the same and here is what that
means to you.
Priority
is always enabled for all ports. If all ports have equal priority in an
overload
condition, the switch will shut down the lowest numbered ports
first.
To
test this you could change the priority of a low numbered port and retest the
phone.
It
may be preferable, if not already done, to use the 1100 watt power supplies.
Hope
this helps
Jim Malone
Network Sales Engineer
Dell | Networking | VA, DC
571-232-0340
From: Meister, Benjamin
Sent: Thursday, April 02, 2015 9:23 AM
To: WW Networking Domain
Subject: N-Series Poe - Ahhhh . . .
Sent: Thursday, April 02, 2015 9:23 AM
To: WW Networking Domain
Subject: N-Series Poe - Ahhhh . . .
Ok folks,
N-series 3048p:
Customer has poe phones, no problems any port.
Customer plus in a Polycom CP7937G phone [15.4w] into a
lowered number port, gets ‘ethernet disconnect’ errors. But when he
switches from say port 1/0/1-14 to port 1/0/47 the phone comes up and stays up
no problem. Same configuration on all ports.
This is unique to 1 or 2 of his switches, the remaining
switches work just fine (all stand alones)
Would this be an indication of a bad ASIC? (which
would be really weird since the lower ports also have PoE phones on them)
Point of fact: we did try ‘no ISDP enable’ trick – no
luck.
~ Ben
~
Benjamin R. Meister
Networking & Converged Infrastructure Sales
Dell | Enterprise Solutions,
Networking
Office + 1.646.409.1330
Mobile +
1.646.489.2035
Friday, March 27, 2015
EqualLogic - connection load balancing
grpparams conn-balancing disable
Other settings having impact
Other settings having impact
TCP Offload
Engine v nastavení karet – OFF
Flow Control – On
resp. Auto
Ze sitovek
odstraneny nepotrebne bindy a protokoly: Client MS Network, QOS, File&Print
a IPV6
Nastaveny JUMBO frames
Instalace MS KB974909 (The network connection of a running
Hyper-V virtual machine is lost under heavy outgoing network traffic on a
Windows Server 2008 R2-based computer)
Switche
– STP off (can cause port off up to 50sec)
– RSTP on (can cause port off up to 12sec), je akceptovatelne to se tusim
nechalo ON
Thursday, March 26, 2015
Monday, March 23, 2015
Wednesday, March 4, 2015
FTOS 9.7
|
411:
Release-To-Web of Dell Networking OS 9.7 for Data Center Switches
Dell Confidential – For Internal Use Only
Dell Networking OS 9.7(0.0) delivers many new features such as
support for Open Networking platforms including S6000-ON, S6000 Stacking, new
automation features like Puppet, increased scale, VRF and VLT enhancements,
and support for new hardware (future launches such as the 10GBaseT module for
S5000 and new optics).
Note: for RTS actual shipping time will vary as 9.6 stock exhausts.
This release adds the following new features:
VRF Enhancement:
ü
VRF aware IPv4 multicast protocols
ü
Support for IPv6 unicast routing protocols per VRF
ü
Support for IS-IS for v4 and v6 VRF
ü
Route leaking across VRF instance using dynamic protocol routes
ü
Introduce VRF support on Z9500
VLT Enhancement:
ü
Support PVST+ protocol in VLT context to interop with existing
ü
PVST enabled networks
ü
Support for Q-in-Q (aka VLAN stacking) in VLT context to provide
multi-tenancy in hosted service provider networks
Scaling Improvements:
ü
OS 9.7 supports a new Forwarding table mode which increases the
number
ü
of IPv4 routes to 128K. This feature is applicable on S6000 and
Z9500
ü
Increase in number of VRF from 64 (current) to 510
ü
2500 L3 vLANs
ü
Network Load Balancing (NLB) cluster increased from 8 (current)
to 64 clusters.
Enhancements to MXL/IOA
ü
F port support on FC Flex IO - Enables direct connectivity to FC
equipment through Fibre channel ports provided by FC Flex IO optional module
rather than through a FC switch
ü
Secure management mode support on MXL to enable Federal
certifications
ü
like UCR and CC for MXL
ü
New Hardware Support
ü
Dell Networking OS 9.7 supports S6000-ON platform. With this
support, customers have the option of choosing one of the supported alternate
operating systems or Dell Networking OS.
ü
Dell Networking OS 9.7 supports 12x10GBase-T module on S5000.
Z9500 Enhancement: This features enables customers to deploy
Z9500 with predictable end-to-end RRoCE performance and DCB lossless Ethernet
support
RRoCE Support
ü
ECN Enhancement
ü
Dynamic Load Balancing
ü
VLT scaling – Up to 512 LAG interfaces supported in a VLT config
Open Automation Enhancement
ü
BMP: Supported on IOA, Best practices upgrades: Automated
failback to previous image and configuration if the SW upgrade is not
committed
ü
Scripting and CLI automation: Ruby, Support for NFS, CLI command
to copy OS images between partitions, TCL script on IOA
ü
DevOps: Puppet with support for NetdevOps model (Hostname,
Physical Interface, VLAN, Layer 2 Interface, Link Aggregation (static))
ü
REST: Support for: Static Routes, ACL, IPv6, WECMP, IP tunnel
Other Features:
ü
S6000 stacking (up to 6 members)
ü
Dynamic config for Fan-out of 40G ports to 4x10G – Supported on
S6000 and Z9500
ü
LACP Link fallback on IOA
ü
BGP Link bandwidth and Weighted ECMP support for unequal cost
load sharing
ü
OpenFlow 1.3 Compliance
ü
IPv6 RA Guard
ü
DHCPv6 Snooping
ü
Ingress SFLOW
ü
MIB support per VLAN
ü
Optics support – SFP+ ZR, QSFP+ LM4 support on S4810, S4820T,
S5000 (ZR optic launch pending)
Dell Networking OS 9.7(0.0) software is currently available for
download to customers with an active Support Contract at the following Dell
Networking Data Center iSupport download site. URL (requires login
credentials):
S-Series:
ZSeries:
The factory will begin cutting in 9.7 in the coming months,
however stock in the hubs will still be 9.6 for some time. Please
expect your customers to receive 9.6 in the near future.
Exception
Dell Networking Z9000 NOT supported
|
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