About Mark Pace Balzan

Mark Pace Balzan · ‎03-16-2017

Hi, I need to enable a simple DHCP relay function on an interface. Basically just receiving the broadcast DHCP Discover and unicasting it to the DHCP server in the global vrf. This is the config I used is as per above which works fine dhcp ipv4 profile TEST relay helper-address vrf default 10.0.0.1 ! interface Bundle-Ether401.2 relay profile TEST I'd like to ask some clarifications: Q1. As soon as I enabled the dhcp profile it I got this log: SUBSCRIBER-SUB_UTIL-5-SESSION_THROTTLE : Subscriber Infra is not ready. Reason: [BNG is deactivated] Do I actually need a BNG license just for enabling the DHCP relay feature ? Q2. Since DHCP relay process seems to be taken care of by the RP CPU (RSP440 in my case), are there any guidelines for scale, in terms of number of DHCP clients and number of simultaneous relayed messages that the box can comfortable handle ? thanks Mark

Mark Pace Balzan · ‎11-30-2016

Hi RSP440 with MOD80 so we should be good. Thanks Mark

Mark Pace Balzan · ‎11-30-2016

Hi Dinesh Thanks. Can you tell me if 6.1.3 is planned to be EMR. I'm running mostly 5.x and I plan on upgrading a 4.x box so if 6.1.3 is EMR that's probably the version I'll choose for the 4.x box Cheers Mark

Mark Pace Balzan · ‎11-29-2016

Hello Jose Let me share my thoughts with you below In each vrf so vrf_a, vrf_b, vrf_c you need to import the /24 prefixes into the vrf. In iOS you can use a route map matching the rt This means that they must be first exported. Exporting from another vrf, which would be your data centre if I understand correctly is also straight forward. Exporting from global is not so easy and if this is the case you probably need to create a loopback cable between two interfaces one in global and another interface inside a vrf say vrf_d and export from there. Let me know if this helps or if it's not clear Mark

Mark Pace Balzan · ‎11-29-2016

Hi, I see that 6.1.2 is out and the current EMR release is 5.3.3/4 What are the plans and timing for a 6.x EMR as I need to upgrade some devices and would like to understand what's planned Thanks Mark

Mark Pace Balzan · ‎10-18-2016

Hi In addition to Aleks explanation below about waiting for the link and control plane to be ready to carry traffic on link ip, is this a point to point link ? If so ospf point to point (ie without DR election) may help to bring up OSPF a little faster.

Mark Pace Balzan · ‎10-03-2016

Hi, I would like to setup a cascaded/subtended 9000v satellite and I understanding this is possible on 5.3.3 I currently have a 9904/RSP440/MOD80 running 5.3.3 as a host to a 9000v2 'Satellite100' as per below. I would like to connect another 9000v, called 'Satellite200' linked to the existing 'Satellite100', rather than to the host A9K HOST---[Bundle100]---Satellite100---[Single GigE]---Satellite200 I could not find any specific documentation for config of cascaded satellite, ie config for Satellite200 on the host 9k. Is is the same config as for Satellite100 used like below ? nv satellite 100 type asr9000v2 interface Bundle-Ether100 description Satellite-100 nv satellite-fabric-link satellite 100 remote-ports GigabitEthernet 0/0/0-43 nv satellite 200 type asr9000v2 interface gig100/0/0/0 description Satellite-200 nv satellite-fabric-link satellite 200 remote-ports GigabitEthernet 0/0/0-43 And for Satellite200, do I then see interfaces on the host 9k like for Satellite100, ie gig100/0/0/0-43 for Satellite100 and gig200/0/0/0-43 for Sateliite 200 ? thanks Mark

Mark Pace Balzan · ‎10-03-2016

Hi, Is there planned support for 1GE DWDM SFP optics on the 9000v satellite platform ? thanks Mark

Mark Pace Balzan · ‎07-19-2016

Hi, I have two routers connected via a point to point layer1 dwdm fibre link via fixed 10G DWDM optics which are based on ITU 100GHz (eg DWDM-SFP10G-61.41). This works fine with no issues. Im upgrading one router to asr9k and got DWDM-SFP10G-C for the 9k. I configured it to the wavelength required but I see that the tunables are based on 50Ghz not 100Ghz like the fixed. ASR9K#sh run controller dwdm 0/8/0/23 Tue Jul 19 13:08:20.750 CET controller dwdm0/8/0/23 wavelength 50GHz-Grid update 1535822 ASR9K#sh controllers dwdm 0/8/0/23 opti$ Tue Jul 19 13:07:41.660 CET Optics Status Optics Type: 10GBASE-TUNABLE Wavelength Info: C-Band, MSA ITU Channel=19, Frequency=195.20THz, Wavelength=1535.822nm Wavelength Owner: Configuration, ITU Channel: GMPLS Signaled=None, Configured=19, Hardware Default=84 TX Power = 0.00 dBm RX Power = -40.00 dBm Question: Is it a correct and supported configuration for a link between two routers having a fixed 100Ghz dwdm optic on one side and a tunable 50Ghz dwdm on the other end of the link. Note dwdm filters in the field are also based on 100Ghz thanks Mark

Mark Pace Balzan · ‎07-05-2016

Hi Aleksander, thanks for your fast reply. So do I understand correctly that the following config matches only untagged frames, and tagged frames will be dropped ? interface GigabitEthernet1 / 0 / 0 / 0 l2transport thanks Mark

Mark Pace Balzan · ‎07-05-2016

Hi I need some help to clarify my understanding about two items on ASR9k. Platform is ASR9904 RSP400 running 5.3.3 I have traffic on the interface below as vlan tagged or untagged for which I want to setup l2vpn xconnect to another port (G1/0/0/4) Is there a difference between the following two config options for the interface to achieve this ? interface GigabitEthernet1/0/0/0 ! interface GigabitEthernet1/0/0/0.1 l2transport encapsulation default l2vpn xconnect group XC p2p XC interface GigabitEthernet1/0/0/0.1 interface GigabitEthernet1/0/0/4 or interface GigabitEthernet1/0/0/0 l2transport l2vpn xconnect group XC p2p XC interface GigabitEthernet1/0/0/0 interface GigabitEthernet1/0/0/4 Second question is: I classify vlan tagged traffic ingress to GigabitEthernet100/0/0/2 on subinterfaces (see below) to be able to setup different services over the physical link connected to GigabitEthernet100/0/0/2 (typically coming from a customer) One such service is internet access on vlan 10 To set this up, both of the below configs work, but Im trying to understand the best option to use. Im not sure if with option #2 (without bridge domain) I should be concerned about the other end of the link being connected to a large L2 domain with too many MAC addresses for the 9k to learn and the possibility of a broadcast storm etc.., as opposed to option #1 which is limited in terms of MACs and has storm control enabled. option#1 interface GigabitEthernet100/0/0/2.10 l2transport encapsulation dot1q 10 rewrite ingress tag pop 1 symmetric service-policy input 100M service-policy output 100M l2vpn bridge group INTERNET bridge-domain INTERNET storm-control multicast kbps 1000 storm-control broadcast kbps 1000 interface GigabitEthernet100/0/0/2.10 mac limit maximum 35 action no-flood ! secure logging ! ! split-horizon group ! routed interface BVI10 interface BVI10 ipv4 address 192.168.0.1/28 or option#2 interface GigabitEthernet100/0/0/2.10 encapsulation dot1q 10 ipv4 address 192.168.0.1/28 service-policy input 100M service-policy output 100M Thanks for your help Mark

Mark Pace Balzan · ‎04-29-2016

Hi Nicolas, I think I'd agree that you need Type B. The difference between your setup and mine is that you are connecting routers back to back so TX from one side must reach RX on the other, so you need a 'twist' in the cable, while I have a patch panel which is essentially an extension of the line card ports. In my case since I will have a breakout panel from 100G CPAK to 10x10GE I believe I need a straight cable, since I then get the TX to RX twist from the regular fibre patch cord from the Patch Panel to my destination router connecting to the 9k. So while the above suggest Polarity A, they key up/key down still confuses me! Mark

Mark Pace Balzan · ‎04-28-2016

Hi, Im getting a little confused with MPO cables, polarity, gender, key up,.key down etc.. I need to connect a CPAK 100GBASE-SR10 on ASR9k to a NCS panel NCS-PP-100x10-SR basically to breakout the CPAK to 10 x 10GE SR ports via the NCS panel From datasheets and on inspection of the ports its clear that the ports are male (with pins) therefore the patch cord needs to be female. The confusing part is the polarity. I believe polarity A is required since a straight connection between CPAK and NCS PP is needed as the fibre patch cord from the PP to the 10G port on the router connecting to the CPAK swaps A and B ports as any standard fibre patch cord would do. Polarity A specifies KEY UP on one side and KEY DOWN on the other if I get this right, however again inspecting the ports on CPAK and NCS panel seem to have a KEY UP on either side, implying a polarity B MPO cable not polarity A, hence the confusion. Would be great if anyone can demystify :) thanks Mark

Mark Pace Balzan · ‎04-26-2016

many thanks for a fast reply. I too had some issues with multicast traffic (but on another network) and PIM snooping wasnt even available on that platform, so I concur with that and fast detection being big advantages for P2P over multiaccess. For OSPF exponential backoff that you mention, this is inbuilt into the IOS code right, not something that needs explicit configuration, unless i guess you want to modify the defaults for stuff like the hold timer etc... Out of interest, would link ip event dampening not helped too in such situation ? cheers Mark

Mark Pace Balzan · ‎04-26-2016

Hi Joseph, am fully aware that im replying to a 7 year old thread and many thing have changed in IOS & platforms, let alone IOS-XR, however reading this thread was very useful, as Im researching the disadvantages of using p2p vs multiacess on an ethernet segment, and I would really like to understand what caused a meltdown you mention above, if you remember at all. Is it the fact that the SPF calculation with 60 ptop links make the router CPU sweat that was the issue, and one single shared multiaccess 'domain' (as in one DR/BDR) did not ? In my case im looking at p2p links from various access boxes hooking up to an ASR9k, single area 0, so I believe its do-able, but happy to hear otherwise. thanks Mark

Mark Pace Balzan · 03-16-2017 08:34 AM

Hi, I need to enable a simple DHCP relay function on an interface. Basically just receiving the broa...

Mark Pace Balzan · 11-30-2016 10:26 AM

Hi RSP440 with MOD80 so we should be good. Thanks Mark

Mark Pace Balzan · 11-30-2016 09:20 AM

Hi Dinesh Thanks. Can you tell me if 6.1.3 is planned to be EMR. I'm running mostly 5.x and I plan o...

Mark Pace Balzan · 11-29-2016 01:07 AM

Hello Jose Let me share my thoughts with you below In each vrf so vrf_a, vrf_b, vrf_c you need to im...

Mark Pace Balzan · 11-29-2016 12:57 AM

Hi, I see that 6.1.2 is out and the current EMR release is 5.3.3/4 What are the plans and timing for...

Mark Pace Balzan · 10-18-2016 12:05 PM

Hi In addition to Aleks explanation below about waiting for the link and control plane to be ready t...

Mark Pace Balzan · 10-03-2016 03:16 AM

Hi, I would like to setup a cascaded/subtended 9000v satellite and I understanding this is possible ...

Mark Pace Balzan · 10-03-2016 03:07 AM

Hi, Is there planned support for 1GE DWDM SFP optics on the 9000v satellite platform ? thanks Mark

Mark Pace Balzan · 07-19-2016 11:13 AM

Hi, I have two routers connected via a point to point layer1 dwdm fibre link via fixed 10G DWDM opti...

Mark Pace Balzan · 07-05-2016 09:23 AM

Hi Aleksander, thanks for your fast reply. So do I understand correctly that the following config ma...

Mark Pace Balzan · 07-05-2016 04:59 AM

Hi I need some help to clarify my understanding about two items on ASR9k. Platform is ASR9904 RSP400...

Mark Pace Balzan · 04-29-2016 04:42 AM

Hi Nicolas, I think I'd agree that you need Type B. The difference between your setup and mine is th...

Mark Pace Balzan · 04-28-2016 01:17 AM

Hi, Im getting a little confused with MPO cables, polarity, gender, key up,.key down etc.. I need to...

Mark Pace Balzan · 04-26-2016 10:18 AM

many thanks for a fast reply. I too had some issues with multicast traffic (but on another network) ...

Mark Pace Balzan · 04-26-2016 05:54 AM

Hi Joseph, am fully aware that im replying to a 7 year old thread and many thing have changed in IOS...

Date Registered	‎02-18-2005 11:18 PM
Date Last Visited	‎05-03-2019 01:00 AM
Total Messages Posted	97
Total Helpful Votes Received	20

Hi,

Hi

Hi Dinesh

Hello Jose

XR 6.1.x EMR

Hi

Hi,

Hi,

ASR9k DWDM 10G SFP+ tunable 50Ghz inter...

Hi Aleksander,

A9k Vlan Matching - BVI or Subinterface...

Hi Nicolas,

MPO Cable for CPAK SR10 to NCS-PP-100x1...

many thanks for a fast reply.

Hi Joseph,

Hi,

Hi