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    Sunday, September 1, 2019

    Mikrotik 1072 or EdgeRouter Infinity for NFP Networking

    Mikrotik 1072 or EdgeRouter Infinity for NFP Networking


    Mikrotik 1072 or EdgeRouter Infinity for NFP

    Posted: 01 Sep 2019 03:44 AM PDT

    Hi folks,

    So I do some work for a not for profit.. And we need a new edge router. We are operating with 10gbps transit, 10gbps peering and are regularly doing 7gbps aggregate (and pushing 2M pps) on current hardware..

    As we have grown we moved from pfsence to a custom hbsd router, then went to Vyos. While they have all been good, the hardware we were on was limit at times, and we have ran into some critical bugs (null Mac packets from vyos leaking onto the peering fabric, and random dropouts).. So we are in the shop for something new that will work and be stable.

    I know Mikrotik is limit to single threaded bgp, and with fast path has been known to misplace arp requests.. But I am unsure how this new edgemax performs? .

    So anyone got experience in running these in anger? With a sensitive IXP?

    Thanks in advance.

    Jake

    Edit: so we don't do MPLs, and right now we just have one full table for IPv4 and IPv6. We also pull another 28k v4 and 18k v6 routes for our IX.

    Moving to 40gbps isn't on the books any time soon, nor is true redundancy (we will keep the old router around as a backup). We offer services but arnt an ISP nor have customers... So while I don't like cutting corners budget nessesitates it.

    Talking about budget.. 8k is the donation I have to work with.

    submitted by /u/Jakevis
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    Time-Sensitive Networking, Time Synchronisation and Traffic Schedules

    Posted: 01 Sep 2019 11:43 AM PDT

    SPAN port on a N9K within a vPC domain

    Posted: 31 Aug 2019 07:52 PM PDT

    Hi all,

    I am having a project which involves sending local SPAN traffic to a security system. The Nexus are all NX-OS. The customer's current system looks like:

    N9K01 ---(SPAN dst)--- FireEye APT

    | ||

    N9K02

    The peer link allows all VLANs on the trunk.

    As per my understanding, let's say if the traffic coming from a vPC, forwarded to another vPC is being mirrored:

    1. Are they losing the visibility of theoretically 50% of the traffic coming from the said vPC?
    2. If the traffic is sent through the peer link, it would not be forwarded out the other vPC member (loop avoidance). So does the the traffic get mirrored first or does it get dropped immediately on ingress of the peer link? Is it ever actually forwarded across the peer link?

    The questions above have the assumption that the system is under normal operation, and no orphan ports are involved. I also have no direct configuration of the devices, only giving thoughts and advises.

    Thanks in advance.

    submitted by /u/IrvineADCarry
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    Network printer not printing possibly due to network issue

    Posted: 01 Sep 2019 12:45 PM PDT

    Hello. I am experiencing an issue with a network printer that fails to print. I have performed the below troubleshooting steps without success:

    • Restarted the printer: it works for a few minutes after which it stops printing again.
    • Changed the Ethernet cable which connects the printer to the network point.
    • Connected the network printer to three other network points.
    • There is a second network printer which is not experiencing these issues and is connected to the same switch as the problematic printer. So I swapped the network connections that connect both these printers to the same switch. The result: the second printer is working fine, the other printer is still experiencing issues.
    • Restarted the switch: as a result the printer works with out issues for ~20 minutes, after which the printing issues return.

    Another observation is that if I try to physically log into the printer, I get a connection timed out message.

    What could be the best way to find the cause of these printing issues?

    I have port mirroring configured so I can view the network traffic of the problematic printer in Wireshark. Is there any specific traffic I should look out for that may be causing the printer to not print?

    submitted by /u/tsigorai
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    Are private APIs not vulnerable to DDoS?

    Posted: 01 Sep 2019 04:56 AM PDT

    Hey, im studying DDoS right now, and havent been able to answer this question:

    I know webservers are vulnerable to DDoS attacks, because they have to serve the content to basically anyone requesting it. But what about a private API, that requires a API token to access?

    Such API is not vulnerable (atleast as much) to a DDoS attack, as the DDoS attack wont cause as much load on the server, as the server will check for the existence of the token in the request, and if it isnt there/is wrong, the server will immediately terminate the connection, right?

    TDLR:

    A private API is not nearly as much vulnerable to DDoS attacks as a traditional webserver? Is this true?

    submitted by /u/livinglibary
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    Best 2.4Ghz AP ?

    Posted: 01 Sep 2019 01:09 AM PDT

    What would be the best 2.4Ghz AP to use for an outdoor hotspot. Would like to keep options open because i want to expand after the main installation.Plan is to install the hotspot with other hotspots by linking them with LiteBeam AC antennas. Hotspot will be working on a RB2011UiAS-RM Routerboard. Was thinking of a 13 dBi Ubiquity Omni And a mikriotik Basebox 2 or the 120 degree Mikrotik Mant sectors.

    Any help will be appreciated.

    submitted by /u/BraaiPakkie
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