Cisco Live is obviously the biggest networking event of the year, and Cisco likes to use all the attention to show off some of their new gear.  I must say I was impressed with some of the Enterprise offerings including the 6807-XL, the 6880-X, the 4451-X, and the Sup 8-E for the 4500-E (check out the Nexus 7700, too, even though they aren’t Enterprise class).  Those boxes definitely gave me a bit of a tingle when I was checking them out, but my eyes opened up when I saw the 3850 in one of my sessions and on the show floor.

ACLs in IPv6 aren’t that different from what you’re used to dealing with in the IPv4 world.  You create a list of denies and permits for use with some other structure like filtering, PBR, and all sorts of other stuff.  Let’s take a look at building an ACL and filtering traffic with it.

For those playing at home, here’s the setup I used to generate the configs and get the output.  Execute some click action for the whole thing.

Here are some more notes from my IIUC studies.  As always, corrections requested.

Paging

• Broadcasts messages to a group for a one-way communication
• Paging groups are used to limit which phones get the broadcast
• Paging can be unicast or multicast
  • Unicast groups limited to 10 members
  • Multicast requires mcast support on the network
• Paging configurations can be unicast, multicast, or multiple-group

!  Unicast Paging
!  When 1044 is dialed, ephone 1 is paged
R1(config)#ephone-dn 44
R1(config-ephone-dn)#number 1044
R1(config-ephone-dn)#paging
R1(config-ephone-dn)#exit
R1(config)#ephone 1
R1(config-ephone)#paging-dn 44

Here are some more notes from my IIUC studies.  As always, corrections requested.

Local Directory

• Allows users to look up names
• Allows names to show up when dialing or receiving a call
• Most phones have a directory button; some have a menu options for the directory

R1(config)#ephone-dn 1
R1(config-ephone-dn)#name Roger Smith

• Directory entries can be added manually

R1(config-telephony)#directory entry 1 1700 Corporate Fax
R1(config-telephony)#directory entry 2 1701 HR Fax

• By default, sorting is done alphabetically by first name.
• Sorting can be changed

R1(config-telephony)#directory last-name-first

More study notes.  Correct if wrong, though I hope I get some of it right since I already since I’m an R&S guy.  :$

**Switchport Configuration
**

• switchport mode access:  This config makes the port an access port that carries the primary and voice VLAN traffic
• switchport mode trunk:  This config akes the port a trunk unconditionally, but it will still send DTP messages
• switchport nonegotiate:  This config keeps the port from sending DTP messages.
• switchport mode dynamic auto:  If the port receives DTP messages, it will become a trunk.  If not, it will be an access port.
• switchport mode dynamic desirable:  The port actively sends DTP messages trying to become a trunk.  This is the default configuration on a Cisco switch.

Cisco IP Phone Boot Process

I got my CCNP certification library the other day to finally get myself another cert, so I’ve been doing some reading of late. The thing I hate about certs is that, even if you have all the experience in the world, there’s always a whole mess of academic stuff that no one really knows or cares about. One of those things is the Cisco Network Hierarchical Model. This model is purely academic and comes with the caveat that you may or may not want to need to use this model in your situation. In other words, here’s what we recommend, but do what you want to make your network run properly.