> Source: [sk167463](https://support.checkpoint.com/results/sk/sk167463)

# sk167463 - BGP peering fails when Jumbo Frames enabled on 3.10 kernel

| Property | Value |
|----------|-------|
| Solution ID | sk167463 |
| Date Created | 2020-06-17 |
| Last Modified | 2022-03-07 |
| Technical Level | General |
| Products | Security Gateway |
| Versions | R81 (EOS) |

## Symptoms

- * BGP peering fails when Jumbo Frames are enabled on 3.10 kernel.
* *Routed.log* shows this error message:

  ```
  bgp_send: sending 19 bytes to x.x.x.x [iBGP AS <#>] blocked (no spooling requested): Resource temporarily unavailable
  ```

## Cause

<br />

## Solution

This problem was fixed. The fix is included starting from:

* [Check Point R81](https://supportcenter.checkpoint.com/supportcenter/portal?eventSubmit_doGoviewsolutiondetails=&solutionid=sk166715)
* [Jumbo Hotfix Accumulator for R80.40](https://supportcenter.checkpoint.com/supportcenter/portal?eventSubmit_doGoviewsolutiondetails=&solutionid=sk165456)starting from Take 83
* [Jumbo Hotfix Accumulator for R80.30](https://supportcenter.checkpoint.com/supportcenter/portal?eventSubmit_doGoviewsolutiondetails=&solutionid=sk153152) starting from Take 219

Check Point recommends to always upgrade to the most recent version ([Security Gateway](https://supportcenter.checkpoint.com/supportcenter/portal?eventSubmit_doShowproductpage&productTab=downloads&product=435) / [VSX](https://supportcenter.checkpoint.com/supportcenter/portal?eventSubmit_doShowproductpage&productTab=downloads&product=359) / [Security Management Server](https://supportcenter.checkpoint.com/supportcenter/portal?eventSubmit_doShowproductpage&productTab=downloads&product=184) / [Multi-Domain Security Management Server](https://supportcenter.checkpoint.com/supportcenter/portal?eventSubmit_doShowproductpage&productTab=downloads&product=166) / [SmartConsole](https://supportcenter.checkpoint.com/supportcenter/portal?eventSubmit_doShowproductpage&productTab=downloads&product=191)).
**Workaround Procedure (for customers who do not upgrade to a higher version or install a Jumbo Hotfix Accumulator)
Note:** Perform a backup before running these commands, and run them during a maintenance window, as running these commands causes a ClusterXL failover.  

**eBGP:**   

1. Adjust the *sendbuf* value for the relevant BGP peers:  
   *# dbset routed:instance:default:bgp:group_type:external-peer:peeras:\<as_number\>:rrclient:none:peer:\<peer_ip\>:sendbuf 131072*   
   *# dbset :save*   

   **Example:**   
   *dbset routed:instance:default:bgp:group_type:external-peer:peeras:65006:rrclient:none:peer:168.172.5.6:sendbuf 131072*   

2. Restart the *routed* process: **(Important Note: This causes a ClusterXL failover. Do this during a maintenance window.)**   
   *# tellpm process:routed*   
   *# tellpm process:routed t*

**iBGP:**   

1. Adjust the *sendbuf* value for the relevant BGP peers:  
   *# dbset routed:instance:default:bgp:group_type:routing-peer:peeras:\<as_number\>:rrclient:none:peer:\<peer_ip\>:sendbuf 131072*   
   *# dbset :save*   

   **Example:**   
   *dbset routed:instance:default:bgp:group_type:routing-peer:peeras:65006:rrclient:none:peer:192.168.1.1:sendbuf 131072*   

2. Restart the *routed* process: **(Important Note: This causes a ClusterXL failover. Do this during a maintenance window.)**   
   *# tellpm process:routed*   
   *# tellpm process:routed t*

<br />

---

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