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twitter.com/ciscochampionSometimes, situations require temporary fixes.
Sometimes, the network becomes an afterthought in overall office design
and planning. In either situation, it may require network engine...
In this special edition of the Insider Series, we hear from Cisco
partners who have taken steps to be more eco-friendly and sustainable.
We hear what inspires ASHRAE, Southwire, Igor, and NTT to create a
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We know that the Type-1 LSA describes the link type connected to the
router, the neighbor router and the subnet number. In this topology,
assume we dont have a Type-2 LSA, so each router will create its own
Type-1 LSA, the Type-1 LSA will describe the nei...
Why IETF changed and inverted OSPF Type-7 LSA VS Type-5 LSA election In
RFC 3101 compared to OLD RFC 1587? Many people learns that the Type-7
LSA and Type-5 election (ON Versus OE routes) depends on RFC 3101 for
NSSA published in 2003 and RFC 1587 for NSS...
OSPF Routing Protocol The Ultimate : CCIE Enterprise Infrastructure Exam
Kindle Edition Description: OSPF Routing Protocol is a big topic in CCIE
Enterprise exam, This workbook is written and dedicated for people and
candidates who prepare the CCIE Enterp...
OSPF Demystified With RFC Version 3.1: RFC Request For Comments
Translated Into Practice With 101 Labs OSPF Routing Protocol Kindle
Edition OSPF Routing Protocol is the most used protocol in the world,
especially in the world of service provider, through ...
Background: In OSPF, there are many loop prevention mechanisms between
ABR because the Vector Distance behavior OSPF in multi area design such
as INTER-AREA LSA Type 3 loop prevention or P-Bit loop prevention. Is
there a loop prevention mechanism between ...
Background: The purpose of this article is to shown how the Largest area
id is OSPF is used as a tie breaker to select the best route. The goal
In this topologie is to ensure so that R1 will prefer the path through
R3 for 220.127.116.11/24 and 4::/64 without mod...
Background: By definition with OSPFv2 the content of the LSA Type 2
describes the network segment listing the DR address, the attached
routers, and the used subnet mask. This information is used by each
router participating in OSPF to build the exact pict...
Why an NSSA ABR does not inject a default route automatically into NSSA
unlike with stub area ? In this topology if an ASBR inject a default
route into OSPF in order to permit internal ospf routers to reach
another routing domain, it creates a Type-7 LSA ...
Hello Everyone! I posted the below information on Reddit yesterday, but
want to ensure it is spread through the community. Apologies if this is
the incorrect approach/forum. I also posted this in the Learning
Network. First, a disclosure. I'm not a cloud/...
Like with DR (Designated Router) on OSPF, on broadcast multi-access,
IS-IS elects a designated intermediate system (DIS) but keep in mind
that unlike with OSPF where a Backup Designated Router is elected , on
IS-IS there is no concept of a Backup DIS.Then...
Hi,I'm having a hard time using kron to save the router configuration to a remote tftp server. I'm using Cisco ASR1001-X running Cisco IOS XE Software, Version 16.08.01.The issue is as follows:In order to forward the router configuration to a tftp s...
When integration DNA with ISE , It will need certification from third party or i can use the ISE self certification or i can not use the certification for the integration Second question Once the DNA integrated with the ISE , The cre...
Hi All, We are running into a port-channel/ether-channel issue in our environment. We have some isr4321s (2ge NIM cards) we just updated to 16.9.6 with ROM-Mon. 16.12(2r) that are giving two seeming different outputs on our static LAGs. We have ...
We had AT&T add a serice on demand (Metro Ethernet) between our 2 sites. Each site has a c9500 switch directly connect to the Metro Ethernet port on the AT&T circuit. When connecting the c9500 at the secondary site I'm able to connect to a vLan cr...