[c-nsp] ME3600 - SVI's + Service Instances

CiscoNSP List cisconsp_list at hotmail.com
Sun Sep 14 19:46:26 EDT 2014


Thanks very much Adam! - Much appreciated.

So each service instance goes "under" the physical Interface where we expect that vlan to be presented? And bridge-domain (100) associates it with vlan100? So on this phyiscal Int, we will have 100+ service instances under it?(I wont have access to an ME to test until later this afternoon).

We will be doing IPTransit + Peering to customers on the ASR1001's, and one IPTransit provider hands off the IPTransit service on there AGG's (That connect to the 4948's) as a vlan - Therefore, we need to get that vlan up to the ASR1001's(As we receive full tables) - Would the trunk port connecting to the ASR -> ME3600 be configured in a similar way to how you have described below on the ME? And on the ASR, can we continue to just use a physical port, which dot1Q subints?  (Note we will also be running a p-t-p connection between the ASR1001 +ME and running MPLS+iBGP+OSPF).....I was going to use a dedicated port(s) for this(As each POP will have 2 x ASR1001's and 2 x ME3600's) connected via  a mesh.

Thanks again for your help
 

> From: adam.vitkovsky at swan.sk
> To: cisconsp_list at hotmail.com; cisco-nsp at puck.nether.net
> Subject: RE: [c-nsp] ME3600 - SVI's + Service Instances
> Date: Sun, 14 Sep 2014 14:59:53 +0000
> 
> Hi,
> 
> I'd use the service instances as it's more convenient. 
> 
> interface GigabitEthernet0/3
>  description dot1q trunk to agg 4948
>  switchport trunk allowed vlan none <--no vlans are accepted except those specified under service instances. 
>  switchport mode trunk
>  dampening
>  mtu 9100
>  load-interval 30
> !
>  service instance 100 ethernet
>   description agg-circuit-to-end-customer-100
>   encapsulation dot1q 100 <--frames with topmost tag 100 will be accepted by this service instance and the bridge domain specified below.  
>   rewrite ingress tag pop 1 symmetric   <--vlan interface will accept only untagged frames. 
>   service-policy input customer-100_in <--service policies are attached under the service instance rather than vlan int. 
>   service-policy output customer-100_out
>   bridge-domain 100 <--this will associate the service instance with a BD 100 and vlan interface 100. 
> 
> interface Vlan100
>  description agg-circuit-to-end-customer-100
>  bandwidth 10000
>  vrf forwarding customer-100
>  ip address 100.1.1.1 255.255.255.252
> no ip proxy-arp
> 
> 
> adam
> 
> > -----Original Message-----
> > From: cisco-nsp [mailto:cisco-nsp-bounces at puck.nether.net] On Behalf Of
> > CiscoNSP List
> > Sent: Sunday, September 14, 2014 3:31 AM
> > To: cisco-nsp at puck.nether.net
> > Subject: [c-nsp] ME3600 - SVI's + Service Instances
> > 
> > Hi Everyone,
> > 
> > Very new to the ME3600 platform, so hoping someone can assist with the
> > following:
> > 
> > We currently have 4948's connecting to various carriers - Each port is a trunk,
> > and has a vlan per tail.
> > i.e.
> > 
> > int gig1/1
> > desc AGG_TO_CARRIER_A
> > switchport trunk encapsulation dot1q
> > switchport mode trunk
> > switchport trunk allowed vlan 10,20,30
> > 
> > We then have another port on the 4948's (Trunk), that allows all vlans from all
> > the carrier AGG ports that connects to 7200's or ASR1000's (We have multiple
> > POP's), and each vlan is then added to dot1q subint and thrown into a vrf or
> > standard "Inet" Interface....we also apply service-policys (egress
> > shaping/ingress marking) on the L3 Interfaces
> > 
> > We are wanting to run MPLS on the ME3600s, and do all the L3 stuff on them
> > rather than the 7200'sand ASR's - So, we will still have the 4948's, multiple
> > carrier AGG's, multiple vlans's but the trunk port(From the 4948s) that
> > currently goes to the 7200's and ASR's will now go to the ME3600s - So, a few
> > questions:
> > 
> > 1. What would the ME3600 Trunk port(That connects back to the 4948) config
> > look like?  i.e. Similar to how we currently do it (switchport trunk allowed vlan
> > 10,20.30,40...), and then create SVI's for each vlan and apply L3/VRF/service
> > policies? Or do SVI's not support service policies and we would need to use
> > service instances? (The 4948's typically have ~100+ vlans(tails) from the
> > various carrriers)
> > 
> > 2. If service instances are required, can anyone please provide an example of
> > how the config would look (Or point me to some documentation please?)
> > 
> > Thanks in advance for your help.
> > 
> > 
> > 
> > _______________________________________________
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