About Sam Preston

Sam Preston · 04-07-2017

Hello, 1st QUESTION:The ASR 9001 maximum throughput capacity is supposed to be 120 Gbps (60 Gbps per NP).But surprisingly, I found a document from Cisco stating that the max capacity of this device is 240 Gbps : http://www.cisco.com/c/en/us/products/...

Sam Preston · 02-20-2017

Hello, The Cisco documentation that I could find pertaining to MPA OIR on Cisco 9001 chassis is not 100% clear. I'm talking about this document: http://www.cisco.com/c/en/us/td/docs/iosxr/asr9000/hardware-install/9001-hig/b-asr9001-hardware-installat...

Sam Preston · 09-14-2015

Hello,I have an ASR9K on which I will configure a GRE tunnel towards a remote destination.My problem is : for security reasons, I would like to filter the IP traffic entering my router via this GRE tunnel to deny unwanted TCP ports. Is this something...

Sam Preston · 03-20-2015

Hi all !I have an ASR 9001 router on which I have for the moment not configured QoS at all.Here is the diagram of my lab network :[HOST_A] ---- [ASR9001] ---- [ROUTER2] ---- [HOST_B]I have configured a BGP peering session between ASR9001 and ROUTER2....

Sam Preston · 12-14-2014

Hi all,I have a Cisco 6509 switch with PFC-3BXL onboard and currently no QoS activated on the PFC.My question is : if I activate QoS on the PFC by typing the following command on the switch :mls qos... what really happens and what will change (if I o...

Sam Preston · 02-27-2017

Hi Xander, Always a pleasure to read you, since you provide valuable information that we can't find in the docs ;-)Definitely this explanation is more clear than the official documentation. In my case I was just replacing an unused 2x10G module by a ...

Sam Preston · 12-14-2014

Thanks Reza for your reply.Indeed what I intend to do is configure CoPP which requires "mls qos" to be configured in order to permit CoPP to be applied at the hardware level (on the PFC). So the "mls qos port-queueing" cannot be used in such context ...

Sam Preston · 02-13-2012

Thanks Richard for this very good answer. For sure the book I mentionned did not explain the behavior well... When they say "The router resets the ARP age counter to zero whenever it sees valid traffic from the corresponding device.", they should hav...

Sam Preston · 02-13-2012

I agree with Richard when he says "I do not agree with Matthias that this is correct" I confirm that this sentence comes from the "Cisco cookbook" and my own experience also proves that this is untrue. So I don't understand why the author stated th...

Sam Preston · 01-31-2012

Yes, triangle design is not an option since I haven't got enough 10-Gbps ports for this. Anyway it would not be so different from adding a second back-to-back link between RouterA and RouterB in area 1. This is just about adding one more link in area...

Member Since	‎11-10-2010 01:19 PM
Date Last Visited	‎08-18-2017 03:54 AM
Posts	24
Total Helpful Votes Received	5

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ASR 9001 throughput capacity

ASR 9001 MPA OIR procedure

[ASR9K] - Ingress ACL on GRE tunnel traffic

ASR9K default QoS mechanism

6500 Series QoS activation

Hi Xander,

Thanks Reza for your reply

ARP cache timeout on Cisco routers

ARP cache timeout on Cisco routers

Re: OSPF NSSA area