Cisco Cisco Prime Network Services Controller Adaptor for DFA Troubleshooting Guide
Cisco Dynamic Fabric Automation Production Troubleshooting Guide
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acorn2(bigsur-elam)# trigger lu ingress ipv4 if source-ipv4-address_ipv4 10.1.5.201 destination-ipv4-
address_ipv4 10.1.1.201
acorn2(bigsur-elam)# start capture
acorn2(bigsur-elam)# show capture lu
Ingress Interface: Ethernet1/1/2 IS NOT A PC
+-----------------------------------------+
| Lookup Vector |
+--------------------+--------------------+
| Field | Raw Value |
+--------------------+--------------------+
| CDCE_DA | 0x020192000000 |
| CDCE_SA | 0x020193000000 |
| CE_DA | 0x002a6a5b71fc |
| CE_SA | 0x002a6a66cf7c |
| CE_Q0_VLAN | 12 |
| CE_Q1_VLAN | 858 |
| L3_SA | 10.1.5.201 |
| L3_DA | 10.1.1.201 |
+--------------------+--------------------+
acorn2(bigsur-elam)# trigger lu egress ipv4 if source-ipv4-address_ipv4 10.1.5.201 destination-ipv4-
address_ipv4 10.1.1.201
acorn2(bigsur-elam)# start capture
acorn2(bigsur-elam)# show capture lu
Egress Interface: Ethernet1/4/3 IS PC
acorn2(bigsur-elam)# show capture rs
+------------------------------------------+
| Result Vector |
+---------------------+--------------------+
| Field | Raw Value |
+---------------------+--------------------+
| CE_DA | 0x005056b9554f |
| CE_SA | 0x002a6a5b71fc |
| CE_Q0_VLAN | 111 |
| L3_DA | 10.1.1.201 |
| L3_SA | 10.1.5.201 |
| EXT_VLAN | 111 |
| CDCE_DA | 0x0201f500000d |
| CDCE_SA | 0x020192000000 |
+---------------------+--------------------+
acorn2(bigsur-elam)#
5
Multicast Forwarding
We will cover both multicast control plane and data-plane forwarding. For each section we will start with a high-level
functional overview, followed by detailed troubleshooting and verification CLI outputs. A DFA multicast cheat sheet will
also be provided in the
functional overview, followed by detailed troubleshooting and verification CLI outputs. A DFA multicast cheat sheet will
also be provided in the
section
.
5.1 Multicast Forwarding Control Plane
Within DFA topologies, we support PIM Any-Source Multicast (ASM), PIM Source-Specific Multicast (SSM), and PIM
Bidirectional (Bidir) multicast forwarding. For the purposes of this document we will focus on ASM functioning, and will
point out relevant information for SSM and Bidir as needed. For DFA with a Fabricpath underlay, IGMP is terminated at
each respective leaf switch and is not propagated through the rest of the fabric, as is the case in non-DFA Fabricpath
topologies. Instead, we utilize BGP Subsequent Address Family Identifiers (SAFI) updates to announce remote receiver
Bidirectional (Bidir) multicast forwarding. For the purposes of this document we will focus on ASM functioning, and will
point out relevant information for SSM and Bidir as needed. For DFA with a Fabricpath underlay, IGMP is terminated at
each respective leaf switch and is not propagated through the rest of the fabric, as is the case in non-DFA Fabricpath
topologies. Instead, we utilize BGP Subsequent Address Family Identifiers (SAFI) updates to announce remote receiver