Az internet most attól hangos, hogy a Cisco linuxos megoldást kínál az ISR router-eihez. Természetesen az NM modul, melyen egy spéci, IOS-el integrált, virtualizált , hardened linux OS fut, iszonyatosan drága jelenleg. Most akkor mi is ez ?

It would have been big news if Cisco has just opened up the routers, but by doing it with a Linux base, Cisco may well dramatically change the Linux server landscape. Instead of needing to rely on Red Hat or Novell to supply Linux running on servers from HP, IBM, Dell, etc., a user that already has an ISR (and there are 4 million of them out there) can just buy an AXP from Cisco, put that module on their ISR and — badda boom badda bing — they’ve got a Linux application server."

Természetesen ez nem azt jelenti hogy egy ISR router-en valaha is Linux fog futni, és ennek bizonyára nem is lenne értelme. Szép a linux, és az open-source is, de azt hiszem azzal, amit Ivan Pepelnjak ír az Ios hints-en, egyet tudok érteni. Egy kis történelem:

• 15 years ago, someone had a great idea to install WAN cards and routing software into PC servers. The journalists greeted that idea as the downfall of dedicated routers. Guess what … it flopped and the router market continued to grow.
• Cheap Layer-3 switches have been greeted as the next router killer. We still have routers and switches in our networks.
• People have been using Linux as their home firewalls for years … and it hasn’t really impacted the low-end router market; SOHO users are still preferring to buy Linksys (or whatever other cheap low-end brand) over configuring firewall on Linux.
• Public-domain BGP implementations have been around for as long as I can remember and they are not bad. Some people with very low budget use them for route servers … but Cisco and Juniper are still selling high-end boxes.

És ezzel is:

In the real world of networks that have more than a few routers, if you have enough budget to buy yourself a good night’s sleep, you usually install dedicated routing hardware … but I guess this is not the sort of story that would sell the industry journals.

Egyébként nekem tetszik hogy Cisco nyit a linux felé (habár eddig is használta platform-nak, pl CCM) , és jó 5letnek tűnik az AXP megoldás, néhány összefoglaló ábra a slide-okból:

• Security:

Popularity: 29% [?]

..azaz Cisco-centric Open source community. Az oldalon különböző scripteket, tool-okat találhatunk, melyek megkönnyíthetik az életünket

Popularity: 14% [?]

Érdekes lehet, még nem próbáltam de mindenképp ki fogom. Letöltés,leírás itt.

Features

• Supports ROUTER, LAN and FRSW dynagen objects;
• Template-driven router configuration generation with PERL-like variable interpolation including:
  • router-wide configuration
  • router-to-router Ethernet link configuration
  • multi-access (LAN) configuration
  • router-to-router serial link (PPP) configuration
  • Frame-relay interface configuration
  • Frame-relay DLCI configuration
  • host (NIO) interface configuration
• Automatic assignment of IP addresses from predefined pools to loopback, LAN and WAN interfaces
• Manual override of IP address assignment with extra keywords in the dynagen file
• Automatic per-subnet IP address calculation when only some devices in the IP subnet have manually-assigned IP addresses

Popularity: 24% [?]

Automatikus config mentés, CVS vagy Subversion alapon. A projectről:

RANCID monitors a router’s (or more generally a device’s) configuration, including software and hardware (cards, serial numbers, etc) and uses CVS (Concurrent Version System) or Subversion to maintain history of changes.

RANCID does this by the very simple process summarized here:

• login to each device in the router table (router.db),
• run various commands to get the information that will be saved,
• cook the output; re-format, remove oscillating or incrementing data,
• email any differences (sample) from the previous collection to a mail list,
• and finally commit those changes to the revision control system

RANCID also includes looking glass software. It is based on Ed Kern’s looking glass which was once used for http://nitrous.digex.net/, for the old-school folks who remember it. Our version has added functions, supports cisco, juniper, and foundry and uses the login scripts that come with rancid; so it can use telnet or ssh to connect to your devices(s).

Rancid currently supports Cisco routers, Juniper routers, Catalyst switches, Foundry switches, Redback NASs, ADC EZT3 muxes, MRTd (and thus likely IRRd), Alteon switches, and HP Procurve switches and a host of others.

Rancid is known to be used at: AOL, Global Crossing, MFN, NTT America, Certainty Solutions Inc.

Van debian csomag a non-free repoban. How-To: itt

Popularity: 27% [?]

A Srácok megint alkottak, itt vannak az ujdonságok:

The GNS3 0.4 release is available. It includes lot of new features and improvements, among them:

• A dynamic mode (no design/emulation modes)
• A new .net save/load.
• c1700 and WICS support.
• PIX emulation.
• Dynamips’s ATM bridge.
• Capture feature for links from the GUI.
• IDLE PC calculation from the GUI.
• GUI improvements (save the window state when closing GNS3 …)
• Annotation feature.
• Project feature (you can keep router configs, nvram …)
• NULL NIO support.
• PDF export.
• New languages.

The next release is planned for late April and should introduce:

• A simulated host based on the LWIP TCP/IP stack which will support some basic services (Web …)
• JunOS olive on Qemu support (to confirm).
• A symbol library.
• Features to use GNS3 for making network diagrams.
• New GUI improvements and options.

 

Nagyon durva lett. El is kezdem tesztelni

Popularity: 37% [?]