Active/Passive vs. Active/Active

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L3 Networker

looks like each palo is marking the path to the standby hsrp peer for a vlan as ecmp preferred path. Is this an issue? What does that mean axactly?

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L3 Networker

Do you recall what had to be done with ecmp in an iBGP mesh? Was it palo alto side or Router/swtich side?

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L4 Transporter

Like I said earlier, can you ditch the HSRP and have BGP peers with both 9500s?

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L4 Transporter

You can read this.  It only applies to Juniper.  Page 8 - https://www.juniper.net/assets/us/en/local/pdf/whitepapers/2000565-en.pdf

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L3 Networker

HSRP is only lan side for servers and clients. Layer 3 routed ports from each 9500 to each palo, iBGP full mesh. 

 

Screen Shot 2019-07-23 at 11.14.58 AM.png

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L3 Networker

Ya Doesn't apply here since I am fully meshed not using route reflectors. This is because route reflectors will only insert the one BGP route in the route table as a method of loop prevention. Its a real killer actaully. 

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L4 Transporter

Gotcha.  Perhaps this is more what you are looking for on the Cisco side?

 

https://www.cisco.com/c/en/us/td/docs/ios-xml/ios/iproute_bgp/configuration/xe-3s/irg-xe-3s-book/ibg...

 

I'm only finding ECMP articles on PAN related to eBGP.

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L3 Networker

I agree, there seems to be a lack of iBGP material, I am wondering it is because normally when BGP is involved you are running them at the edge and peering eBGP with your ISP. 

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L4 Transporter

Have you considered porting from iBGP to eBGP.  Give each PAN and each 9500 it's own AS?  Might be worth labing it out.

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L1 Bithead

Hi @MP18,

Would mind elaborating how you are running active/active in vwire mode?

I am looking at how to use vwire behind a Check Point Cluster as an interim measure until the Palo's replace the Check Points.

Thanks

Ben

 

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