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

Vitkovský Adam adam.vitkovsky at swan.sk
Sun Sep 14 10:59:53 EDT 2014


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
 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
no ip proxy-arp


> -----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
> 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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