Rare project developers

[Frédéric LOUI <>]

Hi ! Sorry for the spam: [cut’n paste mistake]
The expert must have noticed that the debug message should mention NAT tables 
:)
...

info servP4langConn.doRound:servP4lang.java:2033 dataplane said: entry failed 
to prepare entry for table ig_ctl.ig_ctl_nat.tbl_ipv4_nat_cfg with 
Key[ig_md.vrf 1 None None None None None,$MATCH_PRIORITY 0 None None None 
None None,hdr.ipv4.protocol 17 255 None None None None,hdr.ipv4.src_addr 
0.0.0.0 0.0.0.0 None None None None,hdr.ipv4.dst_addr 4.4.4.4 255.255.255.255 
None None None None,ig_md.layer4_srcprt 0 0 None None None 
None,ig_md.layer4_dstprt 0 0 None None None None,hdr.ipv4.diffserv 0 0 None 
None None None,hdr.ipv4.identification 0 0 None None None None] Data[]        
                                                         
info servP4langConn.doRound:servP4lang.java:2033 dataplane said: entry failed 
to prepare entry for table ig_ctl.ig_ctl_nat.tbl_ipv4_nat_cfg with 
Key[ig_md.vrf 1 None None None None None,$MATCH_PRIORITY 1 None None None 
None None,hdr.ipv4.protocol 6 255 None None None None,hdr.ipv4.src_addr 
0.0.0.0 0.0.0.0 None None None None,hdr.ipv4.dst_addr 4.4.4.4 255.255.255.255 
None None None None,ig_md.layer4_srcprt 0 0 None None None 
None,ig_md.layer4_dstprt 0 0 None None None None,hdr.ipv4.diffserv 0 0 None 
None None None,hdr.ipv4.identification 0 0 None None None None] Data[]        
                                                          
info servP4langConn.doRound:servP4lang.java:2033 dataplane said: entry failed 
to prepare entry for table ig_ctl.ig_ctl_nat.tbl_ipv4_nat_cfg with 
Key[ig_md.vrf 1 None None None None None,$MATCH_PRIORITY 2 None None None 
None None,hdr.ipv4.protocol 0 0 None None None None,hdr.ipv4.src_addr 0.0.0.0 
0.0.0.0 None None None None,hdr.ipv4.dst_addr 0.0.0.0 0.0.0.0 None None None 
None,ig_md.layer4_srcprt 0 0 None None None None,ig_md.layer4_dstprt 0 0 None 
None None None,hdr.ipv4.diffserv 0 0 None None None 
None,hdr.ipv4.identification 0 0 None None None None] Data[]                  
                                                          


> Le 8 févr. 2022 à 09:53, Frédéric LOUI <> a écrit :
> 
> Hi,
> 
> As per previous discussion. 
> 
> Now bf_forwarder will send a notification back to the control plane 
> whenever an entry cannot be programmed.
> https://bitbucket.software.geant.org/projects/RARE/repos/rare/commits/cc36f4fb97c5c5173445972a3f97bc763ba8720d
> 
> Before starting bf_forrwarder:
> 
> DAV0001#show p4lang p4                             
> category    value                                  
> peer        null                                   
> closed      null                                   
> capability  null                                   
> platform    null                                   
> since       1970-01-01 01:00:00                    
> for         never                                  
> 
> After having started bf_forwarder
> 
> DAV0001#show p4lang p4                             
> category    value                                  
> peer        127.0.0.1                              
> closed      0                                      
> capability  mpls mcast acl_in acl_out tun bier gre 
> platform    tna/bfforwarder                        
> since       2022-02-08 09:44:12                    
> for         00:00:02                               
> 
> As you can see I configured a NAT basic rule:
> 
> DAV0001#sh run | i nat                                                      
>    
> ipv4 nat inet sequence 10 srclist ACL_NAT4 interface sdn15                  
>    
> 
> DAV0001#ah ACL_NAT4                                                         
>    
> invalid command, try  ?                                                     
>    
> 
> DAV0001#show access-list ACL_NAT4                                           
>    
> sequence 10 permit 17 any all 4.4.4.4 255.255.255.255 all                   
>   
>  match=tx=0(0) rx=0(0) drp=0(0) accessed=never ago, 00:00:00 timeout        
>   
> sequence 20 permit 6 any all 4.4.4.4 255.255.255.255 all                    
>   
>  match=tx=0(0) rx=0(0) drp=0(0) accessed=never ago, 00:00:00 timeout        
>   
> sequence 30 deny all any all any all                                        
>   
>  match=tx=0(0) rx=13764(188) drp=0(0) accessed=00:00:00 ago, 00:00:00 
> timeout 
> 
> After having issue:
> debug p4lang server rx
> term monitor
> 
> DAV0001#term mon                                                            
>                                                     
> DAV0001#warning servP4lang.srvAccept:servP4lang.java:641 neighbor 127.0.0.1 
> up                                                  
> info servP4langConn.doRound:servP4lang.java:2033 dataplane said: entry 
> failed to prepare entry for table ig_ctl.ig_ctl_ipv4b.tbl_ipv4_fib_host 
> with Key[hdr.ipv4b.dst_addr 10.1.14.4 None None None None None,ig_md.vrf 1 
> None None None None None] Data[nexthop_id 51154 None None None None None 
> None]                                                                       
>                  
> info servP4langConn.doRound:servP4lang.java:2033 dataplane said: entry 
> failed to prepare entry for table ig_ctl.ig_ctl_ipv4b.tbl_ipv4_fib_host 
> with Key[hdr.ipv4b.dst_addr 10.1.12.2 None None None None None,ig_md.vrf 1 
> None None None None None] Data[nexthop_id 42506 None None None None None 
> None]                                                                       
>                  
> info servP4langConn.doRound:servP4lang.java:2033 dataplane said: entry 
> failed to prepare entry for table ig_ctl.ig_ctl_ipv4b.tbl_ipv4_fib_host 
> with Key[hdr.ipv4b.dst_addr 10.1.13.3 None None None None None,ig_md.vrf 1 
> None None None None None] Data[nexthop_id 16671 None None None None None 
> None]                                                                       
>                  
> …
> 
> 
> The important point here is to see that p4lang server reported a P4 
> dataplane that does not have NAT.
> Hence, the errors we can observe in debug mode.
> 
> All the best
> fl
> 
> 
> 
> 
> 
>